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Deblanc C, Quéguiner S, Gorin S, Richard G, Moro A, Barbier N, Le Diguerher G, Paboeuf F, Hervé S, Simon G. Pathogenicity and escape to pre-existing immunity of a new genotype of swine influenza H1N2 virus that emerged in France in 2020. Vet Res 2024; 55:65. [PMID: 38773540 DOI: 10.1186/s13567-024-01319-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/22/2024] [Indexed: 05/24/2024] Open
Abstract
In 2020, a new genotype of swine H1N2 influenza virus (H1avN2-HA 1C.2.4) was identified in France. It rapidly spread within the pig population and supplanted the previously predominant H1avN1-HA 1C.2.1 virus. To characterize this new genotype which is genetically and antigenically distant from the other H1avNx viruses detected in France, an experimental study was conducted to compare the outcomes of H1avN2 and H1avN1 infections in pigs and evaluate the protection conferred by the only inactivated vaccine currently licensed in Europe containing an HA 1C (clade 1C.2.2) antigen. Infection with H1avN2 induced stronger clinical signs and earlier shedding than H1avN1. The neutralizing antibodies produced following H1avN2 infection were unable to neutralize H1avN1, and vice versa, whereas the cellular-mediated immunity cross-reacted. Vaccination slightly altered the impact of H1avN2 infection at the clinical level, but did not prevent shedding of infectious virus particles. It induced a cellular-mediated immune response towards H1avN2, but did not produce neutralizing antibodies against this virus. As in vaccinated animals, animals previously infected by H1avN1 developed a cross-reacting cellular immune response but no neutralizing antibodies against H1avN2. However, H1avN1 pre-infection induced a better protection against the H1avN2 infection than vaccination, probably due to higher levels of non-neutralizing antibodies and a mucosal immunity. Altogether, these results showed that the new H1avN2 genotype induced a severe respiratory infection and that the actual vaccine was less effective against this H1avN2-HA 1C.2.4 than against H1avN1-HA 1C.2.1, which may have contributed to the H1avN2 epizootic and dissemination in pig farms in France.
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Affiliation(s)
- Céline Deblanc
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France.
| | - Stéphane Quéguiner
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Stéphane Gorin
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Gautier Richard
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Angélique Moro
- SPF Pig Production and Experimentation, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Nicolas Barbier
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Gérald Le Diguerher
- SPF Pig Production and Experimentation, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Frédéric Paboeuf
- SPF Pig Production and Experimentation, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Séverine Hervé
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
| | - Gaëlle Simon
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440, Ploufragan, France
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Rodda SR, Fararoda R, Gopalakrishnan R, Jha N, Réjou-Méchain M, Couteron P, Barbier N, Alfonso A, Bako O, Bassama P, Behera D, Bissiengou P, Biyiha H, Brockelman WY, Chanthorn W, Chauhan P, Dadhwal VK, Dauby G, Deblauwe V, Dongmo N, Droissart V, Jeyakumar S, Jha CS, Kandem NG, Katembo J, Kougue R, Leblanc H, Lewis S, Libalah M, Manikandan M, Martin-Ducup O, Mbock G, Memiaghe H, Mofack G, Mutyala P, Narayanan A, Nathalang A, Ndjock GO, Ngoula F, Nidamanuri RR, Pélissier R, Saatchi S, Sagang LB, Salla P, Simo-Droissart M, Smith TB, Sonké B, Stevart T, Tjomb D, Zebaze D, Zemagho L, Ploton P. LiDAR-based reference aboveground biomass maps for tropical forests of South Asia and Central Africa. Sci Data 2024; 11:334. [PMID: 38575638 PMCID: PMC10995191 DOI: 10.1038/s41597-024-03162-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 03/19/2024] [Indexed: 04/06/2024] Open
Abstract
Accurate mapping and monitoring of tropical forests aboveground biomass (AGB) is crucial to design effective carbon emission reduction strategies and improving our understanding of Earth's carbon cycle. However, existing large-scale maps of tropical forest AGB generated through combinations of Earth Observation (EO) and forest inventory data show markedly divergent estimates, even after accounting for reported uncertainties. To address this, a network of high-quality reference data is needed to calibrate and validate mapping algorithms. This study aims to generate reference AGB datasets using field inventory plots and airborne LiDAR data for eight sites in Central Africa and five sites in South Asia, two regions largely underrepresented in global reference AGB datasets. The study provides access to these reference AGB maps, including uncertainty maps, at 100 m and 40 m spatial resolutions covering a total LiDAR footprint of 1,11,650 ha [ranging from 150 to 40,000 ha at site level]. These maps serve as calibration/validation datasets to improve the accuracy and reliability of AGB mapping for current and upcoming EO missions (viz., GEDI, BIOMASS, and NISAR).
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Affiliation(s)
- Suraj Reddy Rodda
- Forestry and Ecology Group, National Remote Sensing Centre, ISRO, Hyderabad, 500 037, India.
- Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram, Kerala, India.
| | - Rakesh Fararoda
- Forestry and Ecology Group, National Remote Sensing Centre, ISRO, Hyderabad, 500 037, India
| | | | - Nidhi Jha
- College of Forestry, Oregon State University, Corvallis, OR, 97331, USA
| | | | - Pierre Couteron
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Nicolas Barbier
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Alonso Alfonso
- Center for Conservation and Sustainability, Smithsonian National Zoo and Conservation Biology Institute, Washington, DC, USA
| | - Ousmane Bako
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Patrick Bassama
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Debabrata Behera
- Department of Ecology, French Institute of Pondicherry, Pondicherry, 605 001, India
| | - Pulcherie Bissiengou
- Institut de pharmacopée et de médecine traditionnelle (Herbier National du Gabon), CENAREST, Libreville, Gabon
| | - Hervé Biyiha
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Warren Y Brockelman
- National Biobank of Thailand (NBT), National Science and Technology Development Agency, Klong Luang, Pathum Thani, Thailand
| | - Wirong Chanthorn
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900, Thailand
| | - Prakash Chauhan
- Forestry and Ecology Group, National Remote Sensing Centre, ISRO, Hyderabad, 500 037, India
| | | | - Gilles Dauby
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, P.O Box 1857, Yaoundé, Cameroon
| | - Vincent Deblauwe
- International Institute of Tropical Agriculture (IITA), BP 2008 (Messa), Yaoundé, Cameroon
- Center for Tropical Research, Institute of the Environment and Sustainability, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Narcis Dongmo
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Vincent Droissart
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Selvaraj Jeyakumar
- Department of Ecology, French Institute of Pondicherry, Pondicherry, 605 001, India
| | - Chandra Shekar Jha
- Forestry and Ecology Group, National Remote Sensing Centre, ISRO, Hyderabad, 500 037, India
| | - Narcisse G Kandem
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - John Katembo
- Institut Supérieur d'Etudes Agronomiques de Bengamisa, République Démocratique du Congo, Congo, France
| | - Ronald Kougue
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Hugo Leblanc
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Simon Lewis
- Department of Geography, University College London (UCL), London, UK
- School of Geography, University of Leeds, Leeds, UK
| | - Moses Libalah
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Maya Manikandan
- Forestry and Ecology Group, National Remote Sensing Centre, ISRO, Hyderabad, 500 037, India
| | | | - Germain Mbock
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Hervé Memiaghe
- Institut de pharmacopée et de médecine traditionnelle (Herbier National du Gabon), CENAREST, Libreville, Gabon
| | - Gislain Mofack
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Praveen Mutyala
- Forestry and Ecology Group, National Remote Sensing Centre, ISRO, Hyderabad, 500 037, India
| | - Ayyappan Narayanan
- Department of Ecology, French Institute of Pondicherry, Pondicherry, 605 001, India
| | - Anuttara Nathalang
- National Biobank of Thailand (NBT), National Science and Technology Development Agency, Klong Luang, Pathum Thani, Thailand
| | - Gilbert Oum Ndjock
- Dja Wildlife Reserve, Ministry of Forestry and Wildlife, Yaoundé, Cameroon
| | - Fernandez Ngoula
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Rama Rao Nidamanuri
- Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram, Kerala, India
| | - Raphaël Pélissier
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Sassan Saatchi
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA
| | - Le Bienfaiteur Sagang
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
- Center for Tropical Research, Institute of the Environment and Sustainability, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Patrick Salla
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Murielle Simo-Droissart
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Thomas B Smith
- Center for Tropical Research, Institute of the Environment and Sustainability, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Bonaventure Sonké
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, P.O Box 1857, Yaoundé, Cameroon
| | - Tariq Stevart
- Missouri Botanical Garden, Africa & Madagascar Program, 4344 Shaw Blvd., St. Louis, Missouri, 63110, USA
| | - Danièle Tjomb
- Ecole Nationale des Eaux et Forêts de Mbalmayo, Ministère Des Forêts Et De La Faune, Mbalmayo, Cameroon
| | - Donatien Zebaze
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Lise Zemagho
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Pierre Ploton
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, P.O Box 1857, Yaoundé, Cameroon
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Cooper DLM, Lewis SL, Sullivan MJP, Prado PI, Ter Steege H, Barbier N, Slik F, Sonké B, Ewango CEN, Adu-Bredu S, Affum-Baffoe K, de Aguiar DPP, Ahuite Reategui MA, Aiba SI, Albuquerque BW, de Almeida Matos FD, Alonso A, Amani CA, do Amaral DD, do Amaral IL, Andrade A, de Andrade Miranda IP, Angoboy IB, Araujo-Murakami A, Arboleda NC, Arroyo L, Ashton P, Aymard C GA, Baider C, Baker TR, Balinga MPB, Balslev H, Banin LF, Bánki OS, Baraloto C, Barbosa EM, Barbosa FR, Barlow J, Bastin JF, Beeckman H, Begne S, Bengone NN, Berenguer E, Berry N, Bitariho R, Boeckx P, Bogaert J, Bonyoma B, Boundja P, Bourland N, Boyemba Bosela F, Brambach F, Brienen R, Burslem DFRP, Camargo JL, Campelo W, Cano A, Cárdenas S, Cárdenas López D, de Sá Carpanedo R, Carrero Márquez YA, Carvalho FA, Casas LF, Castellanos H, Castilho CV, Cerón C, Chapman CA, Chave J, Chhang P, Chutipong W, Chuyong GB, Cintra BBL, Clark CJ, Coelho de Souza F, Comiskey JA, Coomes DA, Cornejo Valverde F, Correa DF, Costa FRC, Costa JBP, Couteron P, Culmsee H, Cuni-Sanchez A, Dallmeier F, Damasco G, Dauby G, Dávila N, Dávila Doza HP, De Alban JDT, de Assis RL, De Canniere C, De Haulleville T, de Jesus Veiga Carim M, Demarchi LO, Dexter KG, Di Fiore A, Din HHM, Disney MI, Djiofack BY, Djuikouo MNK, Do TV, Doucet JL, Draper FC, Droissart V, Duivenvoorden JF, Engel J, Estienne V, Farfan-Rios W, Fauset S, Feeley KJ, Feitosa YO, Feldpausch TR, Ferreira C, Ferreira J, Ferreira LV, Fletcher CD, Flores BM, Fofanah A, Foli EG, Fonty É, Fredriksson GM, Fuentes A, Galbraith D, Gallardo Gonzales GP, Garcia-Cabrera K, García-Villacorta R, Gomes VHF, Gómez RZ, Gonzales T, Gribel R, Guedes MC, Guevara JE, Hakeem KR, Hall JS, Hamer KC, Hamilton AC, Harris DJ, Harrison RD, Hart TB, Hector A, Henkel TW, Herbohn J, Hockemba MBN, Hoffman B, Holmgren M, Honorio Coronado EN, Huamantupa-Chuquimaco I, Hubau W, Imai N, Irume MV, Jansen PA, Jeffery KJ, Jimenez EM, Jucker T, Junqueira AB, Kalamandeen M, Kamdem NG, Kartawinata K, Kasongo Yakusu E, Katembo JM, Kearsley E, Kenfack D, Kessler M, Khaing TT, Killeen TJ, Kitayama K, Klitgaard B, Labrière N, Laumonier Y, Laurance SGW, Laurance WF, Laurent F, Le TC, Le TT, Leal ME, Leão de Moraes Novo EM, Levesley A, Libalah MB, Licona JC, Lima Filho DDA, Lindsell JA, Lopes A, Lopes MA, Lovett JC, Lowe R, Lozada JR, Lu X, Luambua NK, Luize BG, Maas P, Magalhães JLL, Magnusson WE, Mahayani NPD, Makana JR, Malhi Y, Maniguaje Rincón L, Mansor A, Manzatto AG, Marimon BS, Marimon-Junior BH, Marshall AR, Martins MP, Mbayu FM, de Medeiros MB, Mesones I, Metali F, Mihindou V, Millet J, Milliken W, Mogollón HF, Molino JF, Mohd Said MN, Monteagudo Mendoza A, Montero JC, Moore S, Mostacedo B, Mozombite Pinto LF, Mukul SA, Munishi PKT, Nagamasu H, Nascimento HEM, Nascimento MT, Neill D, Nilus R, Noronha JC, Nsenga L, Núñez Vargas P, Ojo L, Oliveira AA, de Oliveira EA, Ondo FE, Palacios Cuenca W, Pansini S, Pansonato MP, Paredes MR, Paudel E, Pauletto D, Pearson RG, Pena JLM, Pennington RT, Peres CA, Permana A, Petronelli P, Peñuela Mora MC, Phillips JF, Phillips OL, Pickavance G, Piedade MTF, Pitman NCA, Ploton P, Popelier A, Poulsen JR, Prieto A, Primack RB, Priyadi H, Qie L, Quaresma AC, de Queiroz HL, Ramirez-Angulo H, Ramos JF, Reis NFC, Reitsma J, Revilla JDC, Riutta T, Rivas-Torres G, Robiansyah I, Rocha M, Rodrigues DDJ, Rodriguez-Ronderos ME, Rovero F, Rozak AH, Rudas A, Rutishauser E, Sabatier D, Sagang LB, Sampaio AF, Samsoedin I, Satdichanh M, Schietti J, Schöngart J, Scudeller VV, Seuaturien N, Sheil D, Sierra R, Silman MR, Silva TSF, da Silva Guimarães JR, Simo-Droissart M, Simon MF, Sist P, Sousa TR, de Sousa Farias E, de Souza Coelho L, Spracklen DV, Stas SM, Steinmetz R, Stevenson PR, Stropp J, Sukri RS, Sunderland TCH, Suzuki E, Swaine MD, Tang J, Taplin J, Taylor DM, Tello JS, Terborgh J, Texier N, Theilade I, Thomas DW, Thomas R, Thomas SC, Tirado M, Toirambe B, de Toledo JJ, Tomlinson KW, Torres-Lezama A, Tran HD, Tshibamba Mukendi J, Tumaneng RD, Umaña MN, Umunay PM, Urrego Giraldo LE, Valderrama Sandoval EH, Valenzuela Gamarra L, Van Andel TR, van de Bult M, van de Pol J, van der Heijden G, Vasquez R, Vela CIA, Venticinque EM, Verbeeck H, Veridiano RKA, Vicentini A, Vieira ICG, Vilanova Torre E, Villarroel D, Villa Zegarra BE, Vleminckx J, von Hildebrand P, Vos VA, Vriesendorp C, Webb EL, White LJT, Wich S, Wittmann F, Zagt R, Zang R, Zartman CE, Zemagho L, Zent EL, Zent S. Consistent patterns of common species across tropical tree communities. Nature 2024; 625:728-734. [PMID: 38200314 PMCID: PMC10808064 DOI: 10.1038/s41586-023-06820-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 11/01/2023] [Indexed: 01/12/2024]
Abstract
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1-6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth's 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world's most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.
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Affiliation(s)
- Declan L M Cooper
- Department of Geography, University College London, London, UK.
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK.
| | - Simon L Lewis
- Department of Geography, University College London, London, UK.
- School of Geography, University of Leeds, Leeds, UK.
| | - Martin J P Sullivan
- School of Geography, University of Leeds, Leeds, UK
- Department of Natural Sciences, Manchester Metropolitan University, Manchester, UK
| | - Paulo I Prado
- Instituto de Biociências, Departamento de Ecologia, Universidade de Sao Paulo (USP), São Paulo, Brazil
| | - Hans Ter Steege
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Quantitative Biodiversity Dynamics, Department of Biology, Utrecht University, Utrecht, The Netherlands
| | - Nicolas Barbier
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Ferry Slik
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Bonaventure Sonké
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Corneille E N Ewango
- Faculty of Renewable Natural Resources Management and Faculty of Sciences, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | | | | | - Daniel P P de Aguiar
- Procuradoria-Geral de Justiça, Ministério Público do Estado do Amazonas, Manaus, Brazil
- Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Shin-Ichiro Aiba
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
| | - Bianca Weiss Albuquerque
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Alfonso Alonso
- Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - Christian A Amani
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- Université Officielle de Bukavu, Bukavu, Democratic Republic of the Congo
| | | | - Iêda Leão do Amaral
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Ana Andrade
- Projeto Dinâmica Biológica de Fragmentos Florestais, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Ilondea B Angoboy
- Institut National pour l'Etude et la Recherche Agronomiques, Bukavu, Democratic Republic of the Congo
| | - Alejandro Araujo-Murakami
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
| | | | - Luzmila Arroyo
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
| | - Peter Ashton
- Bullard Emeritus Professor of Forestry, Harvard University, Cambridge, MA, USA
| | - Gerardo A Aymard C
- Programa de Ciencias del Agro y el Mar, Herbario Universitario (PORT), UNELLEZ-Guanare, Guanare, Venezuela
| | - Cláudia Baider
- The Mauritius Herbarium, Agricultural Services, Ministry of Agro-Industry and Food Security, Reduit, Mauritius
- Instituto de Biociências, Departamento de Ecologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | | | | | - Henrik Balslev
- Department of Biology, Aarhus University, Aarhus C, Aarhus, Denmark
| | | | - Olaf S Bánki
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | - Chris Baraloto
- International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, FL, USA
| | | | | | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Jean-Francois Bastin
- TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
| | - Hans Beeckman
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Serge Begne
- School of Geography, University of Leeds, Leeds, UK
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Erika Berenguer
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | | | - Robert Bitariho
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology (MUST), Mbarara, Uganda
| | - Pascal Boeckx
- Isotope Bioscience Laboratory (ISOFYS), Ghent University, Ghent, Belgium
| | - Jan Bogaert
- Biodiversity and Landscape Unit, Gembloux Agro-Bio Tech, Université de Liege, Liège, Belgium
| | - Bernard Bonyoma
- Section de la Foresterie, Institut National pour l'Etude et la Recherche Agronomique Yangambi, Yangambi, Democratic Republic of the Congo
| | - Patrick Boundja
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- Congo Programme, Wildlife Conservation Society, Brazzaville, Republic of Congo
| | - Nils Bourland
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- CIFOR, Bogor, Indonesia
- Forest Resources Management, Gembloux Agro-Bio Tech, University of Liège, Liège, Belgium
- Resources and Synergies Development, Singapore, Singapore
| | - Faustin Boyemba Bosela
- Laboratory of Ecology and Forest Management, Faculty of Sciences, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | - Fabian Brambach
- Biodiversity, Macroecology and Biogeography, University of Göttingen, Göttingen, Germany
| | - Roel Brienen
- School of Geography, University of Leeds, Leeds, UK
| | | | - José Luís Camargo
- Projeto Dinâmica Biológica de Fragmentos Florestais, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Wegliane Campelo
- Universidade Federal do Amapá, Ciências Ambientais, Macapá, Brazil
| | - Angela Cano
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
- Cambridge University Botanic Garden, Cambridge, UK
| | - Sasha Cárdenas
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
| | | | | | | | - Fernanda Antunes Carvalho
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Belo Horizonte, Brazil
| | - Luisa Fernanda Casas
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
| | - Hernán Castellanos
- Centro de Investigaciones Ecológicas de Guayana, Universidad Nacional Experimental de Guayana, Puerto Ordaz, Venezuela
| | - Carolina V Castilho
- Centro de Pesquisa Agroflorestal de Roraima, Embrapa Roraima, Boa Vista, Brazil
| | - Carlos Cerón
- Escuela de Biología Herbario Alfredo Paredes, Universidad Central, Quito, Ecuador
| | - Colin A Chapman
- Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada
- Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China
- School of Life Sciences, University of KwaZulu-Natal, Scottsville, South Africa
| | - Jerome Chave
- Laboratoire Évolution et Diversité Biologique, CNRS and Université Paul Sabatier, Toulouse, France
| | - Phourin Chhang
- Institute of Forest and Wildlife Research and Development (IRD), Phnom Penh, Cambodia
| | - Wanlop Chutipong
- Conservation Ecology Program, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - George B Chuyong
- Faculty of Science, Department of Plant Science, University of Buea, Buea, Cameroon
| | | | - Connie J Clark
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Fernanda Coelho de Souza
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- University of Leeds, Leeds, UK
- BeZero, London, UK
| | - James A Comiskey
- Inventory and Monitoring Program, National Park Service, Fredericksburg, VA, USA
- Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - David A Coomes
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, UK
| | | | - Diego F Correa
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
- The University of Queensland, Brisbane, Queensland, Australia
| | - Flávia R C Costa
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Pierre Couteron
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Heike Culmsee
- State Agency for Environment, Nature Conservation and Geology, Güstrow, Germany
| | - Aida Cuni-Sanchez
- Department of Environment and Geography, University of York, York, UK
- Department of International Environmental and Development Studies (NORAGRIC), Norwegian University of Life Sciences, Ås, Norway
| | - Francisco Dallmeier
- Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - Gabriel Damasco
- Gothenburg Global Biodiversity Centre, University of Gothenburg, Gothenburg, Sweden
| | - Gilles Dauby
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Nállarett Dávila
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | | | - Jose Don T De Alban
- Centre for Nature-Based Climate Solutions, Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Phillipines Programme, Fauna and Flora International, Cambridge, UK
| | - Rafael L de Assis
- Biodiversity and Ecosystem Services, Instituto Tecnológico Vale, Belém, Brazil
| | - Charles De Canniere
- Landscape Ecology and Vegetal Production Systems Unit, Universite Libre de Bruxelles, Brussels, Belgium
| | | | | | - Layon O Demarchi
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Kyle G Dexter
- School of Geosciences, University of Edinburgh, Edinburgh, UK
- Royal Botanic Garden Edinburgh, Edinburgh, UK
| | - Anthony Di Fiore
- Department of Anthropology, University of Texas at Austin, Austin, TX, USA
- Estación de Biodiversidad Tiputini, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Quito, Ecuador
| | - Hazimah Haji Mohammad Din
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | | | - Brice Yannick Djiofack
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Institut National pour l'Etude et la Recherche Agronomiques (INERA), Wood Laboratory of Yangambi, Yangambi, Democratic Republic of the Congo
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Marie-Noël K Djuikouo
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Faculty of Science, Department of Plant Science, University of Buea, Buea, Cameroon
| | - Tran Van Do
- Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam
| | - Jean-Louis Doucet
- Forest Is Life, TERRA, Gembloux Agro-Bio Tech, Liège University, Liège, Belgium
| | - Freddie C Draper
- Department of Geography and Planning, University of Liverpool, Liverpool, UK
| | - Vincent Droissart
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Joost F Duivenvoorden
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Julien Engel
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- Florida International University, Miami, FL, USA
| | - Vittoria Estienne
- Congo Programme, Wildlife Conservation Society, Brazzaville, Republic of Congo
| | - William Farfan-Rios
- Living Earth Collaborative, Washington University in Saint Louis, St Louis, MO, USA
- Missouri Botanical Garden, St Louis, MO, USA
| | - Sophie Fauset
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, UK
| | - Kenneth J Feeley
- Department of Biology, University of Miami, Coral Gables, FL, USA
- Fairchild Tropical Botanic Garden, Coral Gables, FL, USA
| | - Yuri Oliveira Feitosa
- Programa de Pós-Graduação em Biologia (Botânica), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Ted R Feldpausch
- University of Leeds, Leeds, UK
- Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Cid Ferreira
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Joice Ferreira
- Empresa Brasileira de Pesquisa Agropecuária, Embrapa Amazônia Oriental, Belém, Brazil
| | | | | | | | | | - Ernest G Foli
- Forestry Research Institute of Ghana (FORIG), Kumasi, Ghana
| | - Émile Fonty
- Direction Régionale de la Guyane, Office National des Forêts, Cayenne, French Guiana
- Université de Montpellier, Montpellier, France
| | | | - Alfredo Fuentes
- Missouri Botanical Garden, St Louis, MO, USA
- Herbario Nacional de Bolivia, Instituto de Ecología, Carrera de Biología, Universidad Mayor de San Andrés, La Paz, Bolivia
| | | | | | - Karina Garcia-Cabrera
- Biology Department and Center for Energy, Environment and Sustainability, Wake Forest University, Winston Salem, NC, USA
| | - Roosevelt García-Villacorta
- Programa Restauración de Ecosistemas (PRE), Centro de Innovación Científica Amazónica (CINCIA), Tambopata, Peru
- Peruvian Center for Biodiversity and Conservation (PCBC), Iquitos, Peru
| | - Vitor H F Gomes
- Escola de Negócios Tecnologia e Inovação, Centro Universitário do Pará, Belém, Brazil
- Universidade Federal do Pará, Belém, Brazil
| | - Ricardo Zárate Gómez
- PROTERRA, Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos, Peru
| | | | - Rogerio Gribel
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Juan Ernesto Guevara
- Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud-BIOMAS, Universidad de las Américas, Quito, Ecuador
- The Field Museum, Chicago, IL, USA
| | - Khalid Rehman Hakeem
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jefferson S Hall
- Forest Global Earth Observatory (ForestGEO), Smithsonian Tropical Research Institute, Washington, DC, USA
| | | | - Alan C Hamilton
- Honorary Professor, Kunming Institute of Botany, Chinese Academy of Science, Kunming, China
| | | | | | - Terese B Hart
- Lukuru Wildlife Research Foundation, Kinshasa, Democratic Republic of the Congo
- Division of Vertebrate Zoology, Yale Peabody Museum of Natural History, New Haven, CT, USA
| | - Andy Hector
- Department of Plant Sciences, University of Oxford, Oxford, UK
| | - Terry W Henkel
- Department of Biological Sciences, California State Polytechnic University, Humboldt, Arcata, CA, USA
| | - John Herbohn
- Tropical Forests and People Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia
| | | | | | - Milena Holmgren
- Resource Ecology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Euridice N Honorio Coronado
- Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos, Peru
- University of St Andrews, St Andrews, UK
| | | | - Wannes Hubau
- School of Geography, University of Leeds, Leeds, UK
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Department of Environment, Laboratory of Wood Technology (Woodlab), Ghent University, Ghent, Belgium
| | - Nobuo Imai
- Department of Forest Science, Tokyo University of Agriculture, Tokyo, Japan
| | - Mariana Victória Irume
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Patrick A Jansen
- Smithsonian Tropical Research Institute, Ancon, Panama
- Department of Environmental Sciences, Wageningen University and Research, Wageningen, The Netherlands
| | - Kathryn J Jeffery
- Department of Biological and Environmental Sciences, University of Stirling, Stirling, UK
| | - Eliana M Jimenez
- Grupo de Ecología y Conservación de Fauna y Flora Silvestre, Instituto Amazónico de Investigaciones Imani, Universidad Nacional de Colombia sede Amazonia, Leticia, Colombia
| | - Tommaso Jucker
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - André Braga Junqueira
- Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Michelle Kalamandeen
- School of Earth, Environment and Society, McMaster University, Hamilton, Ontario, Canada
| | - Narcisse G Kamdem
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Kuswata Kartawinata
- Integrative Research Center, The Field Museum of Natural History, Chicago, IL, USA
| | - Emmanuel Kasongo Yakusu
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
- Faculté de Gestion de Ressources Naturelles Renouvelables, Université de Kisangani, Kisangani, Democratic Republic of the Congo
| | - John M Katembo
- Laboratory of Ecology and Forest Management, Faculty of Sciences, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | - Elizabeth Kearsley
- Computational and Applied Vegetation Ecology (CAVElab), Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - David Kenfack
- Forest Global Earth Observatory (ForestGEO), Smithsonian Tropical Research Institute, Washington, DC, USA
| | - Michael Kessler
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - Thiri Toe Khaing
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, China
- University of the Chinese Academy of Sciences, Beijing, China
| | | | | | - Bente Klitgaard
- Department for Accelerated Taxonomy, Royal Botanic Gardens, Richmond, UK
| | - Nicolas Labrière
- Laboratoire Évolution et Diversité Biologique, CNRS and Université Paul Sabatier, Toulouse, France
| | - Yves Laumonier
- Forest and Environment Program, Center for International Forestry Research (CIFOR), Bogor, Indonesia
| | - Susan G W Laurance
- Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
| | - William F Laurance
- Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
| | - Félix Laurent
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Institut National pour l'Etude et la Recherche Agronomiques (INERA), Wood Laboratory of Yangambi, Yangambi, Democratic Republic of the Congo
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Tinh Cong Le
- Viet Nature Conservation Centre, Hanoi, Viet Nam
| | | | - Miguel E Leal
- Uganda Programme, Wildlife Conservation Society, Kampala, Uganda
| | | | | | - Moses B Libalah
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
- Department of Plant Biology, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Juan Carlos Licona
- Instituto Boliviano de Investigacion Forestal, Santa Cruz, Santa Cruz, Bolivia
| | | | | | - Aline Lopes
- Department of Ecology, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | | | - Jon C Lovett
- School of Geography, University of Leeds, Leeds, UK
- Herbarium, Royal Botanic Gardens Kew, Richmond, UK
| | - Richard Lowe
- Botany Department, University of Ibadan, Ibadan, Nigeria
| | - José Rafael Lozada
- Facultad de Ciencias Forestales y Ambientales, Instituto de Investigaciones para el Desarrollo Forestal, Universidad de los Andes, Mérida, Mérida, Venezuela
| | - Xinghui Lu
- Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Nestor K Luambua
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Institut National pour l'Etude et la Recherche Agronomiques (INERA), Wood Laboratory of Yangambi, Yangambi, Democratic Republic of the Congo
- Faculty of Renewable Natural Resources Management, University of Kisangani, Kisangani, Democratic Republic of the Congo
- Faculté des sciences Agronomiques, Université Officielle de Mbujimayi, Mbujimayi, Democratic Republic of the Congo
| | - Bruno Garcia Luize
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Paul Maas
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | - José Leonardo Lima Magalhães
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Brazil
- Embrapa Amazônia Oriental, Belém, Brazil
| | - William E Magnusson
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Jean-Remy Makana
- Faculté des Sciences, Laboratoire d'Écologie et Aménagement Forestier, Université de Kisangani, Kisangani, Democratic Republic of the Congo
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Lorena Maniguaje Rincón
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Asyraf Mansor
- School of Biological Sciences, Universiti Sains Malaysia, George Town, Malaysia
- Centre for Marine and Coastal Studies, Universiti Sains Malaysia, George Town, Malaysia
| | | | - Beatriz S Marimon
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil
| | - Ben Hur Marimon-Junior
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil
| | - Andrew R Marshall
- Department of Environment and Geography, University of York, York, UK
- Flamingo Land, Kirby Misperton, UK
- Forest Research Institute, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - Maria Pires Martins
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | | | - Italo Mesones
- Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Faizah Metali
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | - Vianet Mihindou
- Agence Nationale des Parcs Nationaux, Libreville, Gabon
- Ministère de la Forêt, de la Mer, de l'Environnement, Chargé du Plan Climat, Libreville, Gabon
| | - Jerome Millet
- Office français de la biodiversité, Vincennes, France
| | - William Milliken
- Department for Ecosystem Stewardship, Royal Botanic Gardens, Richmond, UK
| | | | - Jean-François Molino
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | | | - Abel Monteagudo Mendoza
- Jardín Botánico de Missouri, Oxapampa, Peru
- Herbario Vargas, Universidad Nacional de San Antonio Abad del Cusco, Cuzco, Peru
| | - Juan Carlos Montero
- Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Instituto Boliviano de Investigacion Forestal, Santa Cruz, Santa Cruz, Bolivia
| | - Sam Moore
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Bonifacio Mostacedo
- Facultad de Ciencias Agrícolas, Universidad Autónoma Gabriel René Moreno, Santa Cruz, Santa Cruz, Bolivia
| | | | - Sharif Ahmed Mukul
- Tropical Forests and People Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia
- Department of Environment and Development Studies, United International University, Dhaka, Bangladesh
| | - Pantaleo K T Munishi
- Department of Ecosystems and Conservation, Sokoine University of Agriculture, Morogoro, Tanzania
| | | | | | - Marcelo Trindade Nascimento
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goyatacazes, Brazil
| | - David Neill
- Universidad Estatal Amazónica, Puyo, Ecuador
| | | | | | - Laurent Nsenga
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Percy Núñez Vargas
- Herbario Vargas, Universidad Nacional de San Antonio Abad del Cusco, Cuzco, Peru
| | - Lucas Ojo
- University of Abeokuta, Abeokuta, Nigeria
| | - Alexandre A Oliveira
- Instituto de Biociências, Departamento de Ecologia, Universidade de Sao Paulo (USP), São Paulo, Brazil
| | - Edmar Almeida de Oliveira
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil
| | | | | | - Susamar Pansini
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia PPG-Bionorte, Universidade Federal de Rondônia, Porto Velho, Brazil
| | - Marcelo Petratti Pansonato
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Instituto de Biociências, Departamento de Ecologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | | | - Ekananda Paudel
- Centre for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Daniela Pauletto
- Instituto de Biodiversidade e Florestas, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Richard G Pearson
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK
| | | | - R Toby Pennington
- Royal Botanic Garden Edinburgh, Edinburgh, UK
- Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK
| | | | - Pascal Petronelli
- Cirad UMR Ecofog, AgrosParisTech, CNRS, INRAE, Université Guyane, Kourou Cedex, France
| | | | | | | | | | - Maria Teresa Fernandez Piedade
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Pierre Ploton
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Andreas Popelier
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
- Faculté de Gestion de Ressources Naturelles Renouvelables, Université de Kisangani, Kisangani, Democratic Republic of the Congo
| | - John R Poulsen
- Nicholas School of the Environment, Duke University, Durham, NC, USA
- The Nature Conservancy, Boulder, CO, USA
| | - Adriana Prieto
- Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Hari Priyadi
- Department of Resource and Environmental Economics (ESL), IPB University, Bogor, Indonesia
| | - Lan Qie
- School of Geography, University of Leeds, Leeds, UK
- School of Life Sciences, University of Lincoln, Lincoln, UK
| | - Adriano Costa Quaresma
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Wetland Department, Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Rastatt, Germany
| | - Helder Lima de Queiroz
- Diretoria Técnico-Científica, Instituto de Desenvolvimento Sustentável Mamirauá, Tefé, Brazil
| | - Hirma Ramirez-Angulo
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Mérida, Mérida, Venezuela
| | - José Ferreira Ramos
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Neidiane Farias Costa Reis
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia PPG-Bionorte, Universidade Federal de Rondônia, Porto Velho, Brazil
| | - Jan Reitsma
- Waardenburg Ecology, Culemborg, The Netherlands
| | | | - Terhi Riutta
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
- College of Life Sciences, University of Exeter, Exeter, UK
| | - Gonzalo Rivas-Torres
- Estación de Biodiversidad Tiputini, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Quito, Ecuador
- University of Florida, Gainesville, FL, USA
| | - Iyan Robiansyah
- Department of Biological Sciences, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
- Center for Plant Conservation Bogor Botanic Gardens, Indonesian Institute of Science, Bogor, Indonesia
| | - Maira Rocha
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - M Elizabeth Rodriguez-Ronderos
- Centre for Nature-Based Climate Solutions, Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Department of Geography, National University of Singapore, Singapore, Singapore
| | - Francesco Rovero
- Deparment of Biology, University of Florence, Sesto Fiorentino, Italy
- Tropical Biodiversity Section, Museo delle Scienze (MUSE), Trento, Italy
| | - Andes H Rozak
- Research Center for Plant Conservation, Botanic Gardens and Forestry, National Research and Innovation Agency (BRIN), Bogor, Indonesia
| | - Agustín Rudas
- Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Daniel Sabatier
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Le Bienfaiteur Sagang
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
- Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA
| | - Adeilza Felipe Sampaio
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia PPG-Bionorte, Universidade Federal de Rondônia, Porto Velho, Brazil
| | - Ismayadi Samsoedin
- Forest Research and Development Center, Research, Development and Innovation Agency, Ministry of Environment and Forestry, Bogor, Indonesia
| | - Manichanh Satdichanh
- Centre for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Juliana Schietti
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Jochen Schöngart
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Veridiana Vizoni Scudeller
- Departamento de Biologia, Universidade Federal do Amazonas (UFAM)-Instituto de Ciências Biológicas (ICB1), Manaus, Brazil
| | | | - Douglas Sheil
- Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands
| | | | - Miles R Silman
- Biology Department and Center for Energy, Environment and Sustainability, Wake Forest University, Winston Salem, NC, USA
| | | | | | - Murielle Simo-Droissart
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Plinio Sist
- Cirad-ES, Campus International de Baillarguet, TA C-105/D, Montpellier, France
| | - Thaiane R Sousa
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Emanuelle de Sousa Farias
- Laboratório de Ecologia de Doenças Transmissíveis da Amazônia (EDTA), Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Brazil
- Instituto Oswaldo Cruz (IOC/FIOCRUZ), Rio de Janeiro, Brazil
| | - Luiz de Souza Coelho
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Suzanne M Stas
- School of Earth and Environment, University of Leeds, Leeds, UK
| | | | - Pablo R Stevenson
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
| | - Juliana Stropp
- Biogeography Department, Trier University, Trier, Germany
| | - Rahayu S Sukri
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | - Terry C H Sunderland
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- Faculty of Forestry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Eizi Suzuki
- Research Center for the Pacific Islands, Kagoshima University, Kagoshima, Japan
| | - Michael D Swaine
- Department of Plant and Soil Science, School of Biological Sciences, University of Aberdeen, Aberdeen, UK
| | - Jianwei Tang
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China
| | - James Taplin
- UK Research and Innovation, Innovate UK, London, UK
| | - David M Taylor
- Department of Geography, National University of Singapore, Singapore, Singapore
| | - J Sebastián Tello
- Center for Conservation and Sustainable Development, Missouri Botanical Garden, St Louis, MO, USA
| | - John Terborgh
- Department of Biology and Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- James Cook University, Cairns, Queensland, Australia
| | | | - Ida Theilade
- Department of Food and Resource Economics, University of Copenhagen, Copenhagen, Denmark
| | - Duncan W Thomas
- School of Biological Sciences, Washington State University, Vancouver, WA, USA
| | - Raquel Thomas
- Iwokrama International Centre for Rain Forest Conservation and Development, Georgetown, Guyana
| | - Sean C Thomas
- Institute of Forestry and Conservation, University of Toronto, Toronto, Ontario, Canada
| | | | - Benjamin Toirambe
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Ministère de l'Environnement et Développement Durable, Kinshasa, Democratic Republic of the Congo
| | | | - Kyle W Tomlinson
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, China
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, China
| | - Armando Torres-Lezama
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Mérida, Mérida, Venezuela
| | | | - John Tshibamba Mukendi
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Faculté de Gestion de Ressources Naturelles Renouvelables, Université de Kisangani, Kisangani, Democratic Republic of the Congo
- Faculté des Sciences Appliquées, Université de Mbujimayi, Mbujimayi, Democratic Republic of the Congo
| | - Roven D Tumaneng
- Phillipines Programme, Fauna and Flora International, Cambridge, UK
- Emerging Technology Development Division, Department of Science and Technology Philippine Council for Industry, Energy and Emerging Technology Research and Development (DOST-PCIEERD), Taguig City, Philippines
| | - Maria Natalia Umaña
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Peter M Umunay
- Wildlife Conservation Society, New York, NY, USA
- Yale School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA
| | | | - Elvis H Valderrama Sandoval
- Department of Biology, University of Missouri, St Louis, MO, USA
- Universidad Nacional de la Amazonia Peruana, Iquitos, Peru
| | | | - Tinde R Van Andel
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Wageningen University, Wageningen, The Netherlands
| | - Martin van de Bult
- Doi Tung Development Project, Social Development Department, Chiang Rai, Thailand
| | | | | | | | - César I A Vela
- Escuela Profesional de Ingeniería Forestal, Universidad Nacional de San Antonio Abad del Cusco, Puerto Maldonado, Peru
| | | | - Hans Verbeeck
- CAVElab-Computational and Applied Vegetation Ecology, Department of Environment, Ghent University, Ghent, Belgium
| | | | - Alberto Vicentini
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Emilio Vilanova Torre
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Mérida, Mérida, Venezuela
- Wildlife Conservation Society, New York, NY, USA
| | - Daniel Villarroel
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
- Fundación Amigos de la Naturaleza (FAN), Santa Cruz, Bolivia
| | | | - Jason Vleminckx
- International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, FL, USA
- Faculté des Sciences, Service d'Évolution Biologique et Écologie, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Vincent Antoine Vos
- Instituto de Investigaciones Forestales de la Amazonía, Universidad Autónoma del Beni José Ballivián, Riberalta, Beni, Bolivia
| | | | - Edward L Webb
- Viikki Tropical Resources Institute, Department of Forest Sciences, University of Helsinki, Helsinki, Finland
- Helsinki Institute of Sustainability Science (HELSUS), Helsinki, Finland
| | - Lee J T White
- Ministry of Forests, Seas, Environment and Climate, Libreville, Gabon
- Department of Biological and Environmental Sciences, University of Stirling, Stirling, UK
- Institut de Recherche en Écologie Tropicale, Libreville, Gabon
| | - Serge Wich
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Florian Wittmann
- Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Wetland Department, Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Rastatt, Germany
| | | | - Runguo Zang
- Key Laboratory of Forest Ecology and Environment of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Charles Eugene Zartman
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Lise Zemagho
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Egleé L Zent
- Laboratory of Human Ecology, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
| | - Stanford Zent
- Laboratory of Human Ecology, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
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4
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Sylvestre M, Barbier N, Sibut V, Nayar S, Monvoisin C, Leonard S, Saint-Vanne J, Martin A, Guirriec M, Latour M, Jouan F, Baulande S, Bohec M, Verdière L, Mechta-Grigoriou F, Mourcin F, Bertheuil N, Barone F, Tarte K, Roulois D. KDM6B drives epigenetic reprogramming associated with lymphoid stromal cell early commitment and immune properties. Sci Adv 2023; 9:eadh2708. [PMID: 38019914 PMCID: PMC10686565 DOI: 10.1126/sciadv.adh2708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023]
Abstract
Mature lymphoid stromal cells (LSCs) are key organizers of immune responses within secondary lymphoid organs. Similarly, inflammation-driven tertiary lymphoid structures depend on immunofibroblasts producing lymphoid cytokines and chemokines. Recent studies have explored the origin and heterogeneity of LSC/immunofibroblasts, yet the molecular and epigenetic mechanisms involved in their commitment are still unknown. This study explored the transcriptomic and epigenetic reprogramming underlying LSC/immunofibroblast commitment. We identified the induction of lysine demethylase 6B (KDM6B) as the primary epigenetic driver of early immunofibroblast differentiation. In addition, we observed an enrichment for KDM6B gene signature in murine inflammatory fibroblasts and pathogenic stroma of patients with autoimmune diseases. Last, KDM6B was required for the acquisition of LSC/immunofibroblast functional properties, including the up-regulation of CCL2 and the resulting recruitment of monocytes. Overall, our results reveal epigenetic mechanisms that participate in the early commitment and immune properties of immunofibroblasts and support the use of epigenetic modifiers as fibroblast-targeting strategies in chronic inflammation.
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Affiliation(s)
- Marvin Sylvestre
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Nicolas Barbier
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Vonick Sibut
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Saba Nayar
- Centre for Translational inflammation Research, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham Research Laboratories, Queen Elizabeth Hospital, Birmingham, UK
| | - Céline Monvoisin
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Simon Leonard
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
- LabEx IGO “Immunotherapy, Graft, Oncology”, F-35043 Nantes, France
| | - Julien Saint-Vanne
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
- SITI, Pôle Biologie, CHU Rennes, F-35033 Rennes, France
| | - Ansie Martin
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Marion Guirriec
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Maëlle Latour
- SITI, Pôle Biologie, CHU Rennes, F-35033 Rennes, France
| | - Florence Jouan
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Sylvain Baulande
- Institut Curie Genomics of Excellence (ICGex) Platform, Institut Curie Research Center, PSL Research University, F-75005 Paris, France
| | - Mylène Bohec
- Institut Curie Genomics of Excellence (ICGex) Platform, Institut Curie Research Center, PSL Research University, F-75005 Paris, France
| | - Léa Verdière
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Fatima Mechta-Grigoriou
- Stress and Cancer Laboratory, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Institut Curie, INSERM, U830, PSL Research University, 26, rue d’Ulm, F-75005 Paris, France
| | - Frédéric Mourcin
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
| | - Nicolas Bertheuil
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
- Department of Plastic Surgery, CHU Rennes, F-35033 Rennes, France
| | | | - Karin Tarte
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
- SITI, Pôle Biologie, CHU Rennes, F-35033 Rennes, France
| | - David Roulois
- Honeycomb team, Equipe Labellisée par la Ligue Nationale Contre le Cancer, Univ Rennes, INSERM, EFS, UMR S1236, Rennes, France
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5
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Andraud M, Hervé S, Gorin S, Barbier N, Quéguiner S, Paboeuf F, Simon G, Rose N. Evaluation of early single dose vaccination on swine influenza A virus transmission in piglets: From experimental data to mechanistic modelling. Vaccine 2023; 41:3119-3127. [PMID: 37061373 DOI: 10.1016/j.vaccine.2023.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/17/2023]
Abstract
Swine influenza A virus (swIAV) is a major pathogen affecting pigs with a huge economic impact and potentially zoonotic. Epidemiological studies in endemically infected farms permitted to identify critical factors favoring on-farm persistence, among which maternally-derived antibodies (MDAs). Vaccination is commonly practiced in breeding herds and might be used for immunization of growing pigs at weaning. Althoughinterference between MDAs and vaccination was reported in young piglets, its impact on swIAV transmission was not yet quantified. To this aim, this study reports on a transmission experiment in piglets with or without MDAs, vaccinated with a single dose injection at four weeks of age, and challenged 17 days post-vaccination. To transpose small-scale experiments to real-life situation, estimated parameters were used in a simulation tool to assess their influence at the herd level. Based on a thorough follow-up of the infection chain during the experiment, the transmission of the swIAV challenge strain was highly dependent on the MDA status of the pigs when vaccinated. MDA-positive vaccinated animals showed a direct transmission rate 3.6-fold higher than the one obtained in vaccinated animals without MDAs, estimated to 1.2. Vaccination nevertheless reduced significantly the contribution of airborne transmission when compared with previous estimates obtained in unvaccinated animals. The integration of parameter estimates in a large-scale simulation model, representing a typical farrow-to-finish pig herd, evidenced an extended persistence of viral spread when vaccination of sows and single dose vaccination of piglets was hypothesized. When extinction was quasi-systematic at year 5 post-introduction in the absence of sow vaccination but with single dose early vaccination of piglets, the extinction probability fell down to 33% when batch-to-batch vaccination was implemented both in breeding herd and weaned piglets. These results shed light on a potential adverse effect of single dose vaccination in MDA-positive piglets, which might lead to longer persistence of the SwIAV at the herd level.
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Affiliation(s)
- M Andraud
- Anses, Ploufragan-Plouzané-Niort Laboratory, Epidemiology, Health and Welfare Unit, France.
| | - S Hervé
- Anses, Ploufragan-Plouzané-Niort Laboratory, Swine Virology Immunology Unit, France
| | - S Gorin
- Anses, Ploufragan-Plouzané-Niort Laboratory, Swine Virology Immunology Unit, France
| | - N Barbier
- Anses, Ploufragan-Plouzané-Niort Laboratory, Swine Virology Immunology Unit, France
| | - S Quéguiner
- Anses, Ploufragan-Plouzané-Niort Laboratory, Swine Virology Immunology Unit, France
| | - F Paboeuf
- Anses, Ploufragan-Plouzané-Niort Laboratory, SPF Pig Production and Experimentation, France
| | - G Simon
- Anses, Ploufragan-Plouzané-Niort Laboratory, Swine Virology Immunology Unit, France
| | - N Rose
- Anses, Ploufragan-Plouzané-Niort Laboratory, Epidemiology, Health and Welfare Unit, France
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6
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Jucker T, Fischer FJ, Chave J, Coomes DA, Caspersen J, Ali A, Loubota Panzou GJ, Feldpausch TR, Falster D, Usoltsev VA, Adu‐Bredu S, Alves LF, Aminpour M, Angoboy IB, Anten NPR, Antin C, Askari Y, Muñoz R, Ayyappan N, Balvanera P, Banin L, Barbier N, Battles JJ, Beeckman H, Bocko YE, Bond‐Lamberty B, Bongers F, Bowers S, Brade T, van Breugel M, Chantrain A, Chaudhary R, Dai J, Dalponte M, Dimobe K, Domec J, Doucet J, Duursma RA, Enríquez M, van Ewijk KY, Farfán‐Rios W, Fayolle A, Forni E, Forrester DI, Gilani H, Godlee JL, Gourlet‐Fleury S, Haeni M, Hall JS, He J, Hemp A, Hernández‐Stefanoni JL, Higgins SI, Holdaway RJ, Hussain K, Hutley LB, Ichie T, Iida Y, Jiang H, Joshi PR, Kaboli H, Larsary MK, Kenzo T, Kloeppel BD, Kohyama T, Kunwar S, Kuyah S, Kvasnica J, Lin S, Lines ER, Liu H, Lorimer C, Loumeto J, Malhi Y, Marshall PL, Mattsson E, Matula R, Meave JA, Mensah S, Mi X, Momo S, Moncrieff GR, Mora F, Nissanka SP, O'Hara KL, Pearce S, Pelissier R, Peri PL, Ploton P, Poorter L, Pour MJ, Pourbabaei H, Dupuy‐Rada JM, Ribeiro SC, Ryan C, Sanaei A, Sanger J, Schlund M, Sellan G, Shenkin A, Sonké B, Sterck FJ, Svátek M, Takagi K, Trugman AT, Ullah F, Vadeboncoeur MA, Valipour A, Vanderwel MC, Vovides AG, Wang W, Wang L, Wirth C, Woods M, Xiang W, Ximenes FDA, Xu Y, Yamada T, Zavala MA. Tallo: A global tree allometry and crown architecture database. Glob Chang Biol 2022; 28:5254-5268. [PMID: 35703577 PMCID: PMC9542605 DOI: 10.1111/gcb.16302] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/12/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Data capturing multiple axes of tree size and shape, such as a tree's stem diameter, height and crown size, underpin a wide range of ecological research-from developing and testing theory on forest structure and dynamics, to estimating forest carbon stocks and their uncertainties, and integrating remote sensing imagery into forest monitoring programmes. However, these data can be surprisingly hard to come by, particularly for certain regions of the world and for specific taxonomic groups, posing a real barrier to progress in these fields. To overcome this challenge, we developed the Tallo database, a collection of 498,838 georeferenced and taxonomically standardized records of individual trees for which stem diameter, height and/or crown radius have been measured. These data were collected at 61,856 globally distributed sites, spanning all major forested and non-forested biomes. The majority of trees in the database are identified to species (88%), and collectively Tallo includes data for 5163 species distributed across 1453 genera and 187 plant families. The database is publicly archived under a CC-BY 4.0 licence and can be access from: https://doi.org/10.5281/zenodo.6637599. To demonstrate its value, here we present three case studies that highlight how the Tallo database can be used to address a range of theoretical and applied questions in ecology-from testing the predictions of metabolic scaling theory, to exploring the limits of tree allometric plasticity along environmental gradients and modelling global variation in maximum attainable tree height. In doing so, we provide a key resource for field ecologists, remote sensing researchers and the modelling community working together to better understand the role that trees play in regulating the terrestrial carbon cycle.
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Affiliation(s)
- Tommaso Jucker
- School of Biological SciencesUniversity of BristolBristolUK
| | | | - Jérôme Chave
- Laboratoire Évolution et Diversité Biologique (EDB)UMR 5174 (CNRS/IRD/UPS)Toulouse Cedex 9France
- Université ToulouseToulouse Cedex 9France
| | - David A. Coomes
- Conservation Research InstituteUniversity of CambridgeCambridgeUK
| | - John Caspersen
- Institute of Forestry and ConservationUniversity of TorontoTorontoOntarioCanada
| | - Arshad Ali
- Forest Ecology Research Group, College of Life SciencesHebei UniversityBaodingHebeiChina
| | - Grace Jopaul Loubota Panzou
- Université de Liège, Gembloux Agro‐Bio TechGemblouxBelgium
- Laboratoire de Biodiversité, de Gestion des Ecosystèmes et de l'Environnement (LBGE), Faculté des Sciences et TechniquesUniversité Marien NgouabiBrazzavilleRepublic of Congo
| | - Ted R. Feldpausch
- College of Life and Environmental SciencesUniversity of ExeterExeterUK
| | - Daniel Falster
- Evolution & Ecology Research CentreUniversity of New South Wales SydneySydneyNew South WalesAustralia
| | - Vladimir A. Usoltsev
- Department of ForestryUral State Forest Engineering UniversityYekaterinburgRussia
- Department of Forest DynamicsBotanical Garden of the Ural Branch of Russian Academy of SciencesYekaterinburgRussia
| | - Stephen Adu‐Bredu
- Forestry Research Institute of Ghana, Council for Scientific and Industrial ResearchUniversityKumasiGhana
| | - Luciana F. Alves
- Center for Tropical Research, Institute of the Environment and SustainabilityUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | - Mohammad Aminpour
- Natural Recourses and Watershed Management Office, West Azerbaijan ProvinceUrmiaIran
| | - Ilondea B. Angoboy
- Institut National pour l'Etude et la Recherche AgronimiquesDemocratic Republic of the Congo
| | - Niels P. R. Anten
- Center for Crop Systems AnalysisWageningen UniversityWageningenThe Netherlands
| | - Cécile Antin
- AMAP LabMontpellier University, IRD, CIRAD, CNRS, INRAEMontpellierFrance
| | - Yousef Askari
- Research Division of Natural Resources, Kohgiluyeh and Boyerahmad Agriculture and Natural Resources Research and Education Center, AREEOYasoujIran
| | - Rodrigo Muñoz
- Departamento de Ecología y Recursos Naturales, Facultad de CienciasUniversidad Nacional Autónoma de México, CoyoacánCiudad de MéxicoMexico
- Forest Ecology and Forest Management GroupWageningen UniversityWageningenThe Netherlands
| | | | - Patricia Balvanera
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de MéxicoMoreliaMichoacánMexico
| | | | - Nicolas Barbier
- AMAP LabMontpellier University, IRD, CIRAD, CNRS, INRAEMontpellierFrance
| | | | - Hans Beeckman
- Service of Wood BiologyRoyal Museum for Central AfricaTervurenBelgium
| | - Yannick E. Bocko
- Laboratoire de Biodiversité, de Gestion des Ecosystèmes et de l'Environnement (LBGE), Faculté des Sciences et TechniquesUniversité Marien NgouabiBrazzavilleRepublic of Congo
| | - Ben Bond‐Lamberty
- Pacific Northwest National LaboratoryJoint Global Change Research InstituteCollege ParkMarylandUSA
| | - Frans Bongers
- Forest Ecology and Forest Management GroupWageningen UniversityWageningenThe Netherlands
| | - Samuel Bowers
- School of GeoSciencesUniversity of EdinburghEdinburghUK
| | - Thomas Brade
- School of GeoSciencesUniversity of EdinburghEdinburghUK
| | - Michiel van Breugel
- Yale‐NUS CollegeSingapore
- ForestGEOSmithsonian Tropical Research InstituteApartadoPanamaRepublic of Panama
- Department of GeographyNational University of SingaporeSingapore
| | | | - Rajeev Chaudhary
- Division Forest OfficeMinistry of ForestDhangadhiSudurpashchim ProvinceNepal
| | - Jingyu Dai
- College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface ProcessesPeking UniversityBeijingChina
| | - Michele Dalponte
- Research and Innovation Centre, Fondazione Edmund MachSan Michele all'AdigeItaly
| | - Kangbéni Dimobe
- Institut des Sciences de l'Environnement et du Développement Rural (ISEDR)Université de DédougouDédougouBurkina Faso
| | - Jean‐Christophe Domec
- Bordeaux Sciences Agro‐UMR ISPA, INRAEBordeauxFrance
- Nicholas School of the EnvironmentDuke UniversityDurhamNCUSA
| | | | | | - Moisés Enríquez
- Departamento de Ecología y Recursos Naturales, Facultad de CienciasUniversidad Nacional Autónoma de México, CoyoacánCiudad de MéxicoMexico
| | - Karin Y. van Ewijk
- Department of Geography and Planning, Queen's UniversityKingstonOntarioCanada
| | | | | | - Eric Forni
- CIRAD, UPR Forêts et SociétésMontpellierFrance
| | | | - Hammad Gilani
- Institute of Space Technology, Islamabad HighwayIslamabadPakistan
| | | | | | - Matthias Haeni
- Swiss Federal Research Institute WSLBirmensdorfSwitzerland
| | - Jefferson S. Hall
- ForestGEOSmithsonian Tropical Research InstituteApartadoPanamaRepublic of Panama
| | - Jie‐Kun He
- Spatial Ecology Lab, School of Life SciencesSouth China Normal UniversityGuangzhouGuangdongChina
| | - Andreas Hemp
- Department of Plant SystematicsUniversity of BayreuthBayreuthGermany
| | | | | | | | - Kiramat Hussain
- Gilgit‐Baltistan Forest Wildlife and Environment DepartmentGilgitPakistan
| | - Lindsay B. Hutley
- Research Institute for the Environment & LivelihoodsCharles Darwin UniversityCasuarinaNorthern TerritoryAustralia
| | - Tomoaki Ichie
- Faculty of Agriculture and Marine ScienceKochi UniversityNankokuKochiJapan
| | - Yoshiko Iida
- Forestry and Forest Products Research InstituteTsukubaIbarakiJapan
| | - Hai‐sheng Jiang
- Spatial Ecology Lab, School of Life SciencesSouth China Normal UniversityGuangzhouGuangdongChina
| | | | - Hasan Kaboli
- Faculty of Desert Studies Semnan UniversitySemnanIran
| | | | - Tanaka Kenzo
- Japan International Research Center for Agricultural SciencesTsukubaIbarakiJapan
| | - Brian D. Kloeppel
- Department of Geosciences and Natural ResourcesWestern Carolina UniversityCullowheeNorth CarolinaUSA
- Graduate School and ResearchWestern Carolina UnversityCullowheeNorth CarolinaUSA
| | - Takashi Kohyama
- Faculty of Environmental Earth ScienceHokkaido UniversitySapporoJapan
| | - Suwash Kunwar
- Division Forest OfficeMinistry of ForestDhangadhiSudurpashchim ProvinceNepal
- Department of Forest Resources Management, College of ForestryNanjing Forestry UniversityNanjingJiangsuChina
| | - Shem Kuyah
- Jomo Kenyatta University of Agriculture and Technology (JKUAT)NairobiKenya
| | - Jakub Kvasnica
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood TechnologyMendel University in BrnoBrnoCzech Republic
| | - Siliang Lin
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research InstituteGuangdong Academy of Agricultural SciencesGuangzhouGuangdongChina
| | - Emily R. Lines
- Department of GeographyUniversity of CambridgeCambridgeUK
| | - Hongyan Liu
- College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface ProcessesPeking UniversityBeijingChina
| | - Craig Lorimer
- Department of Forest and Wildlife EcologyUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Jean‐Joël Loumeto
- Laboratoire de Biodiversité, de Gestion des Ecosystèmes et de l'Environnement (LBGE), Faculté des Sciences et TechniquesUniversité Marien NgouabiBrazzavilleRepublic of Congo
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the EnvironmentUniversity of OxfordOxfordUK
| | - Peter L. Marshall
- Faculty of ForestryUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Eskil Mattsson
- IVL Swedish Environmental Research InstituteGöteborgSweden
- Gothenburg Global Biodiversity Centre (GGBC), GothenburgSweden
| | - Radim Matula
- Faculty of Forestry and Wood SciencesCzech University of Life Sciences Prague, Prague 6SuchdolCzech Republic
| | - Jorge A. Meave
- Departamento de Ecología y Recursos Naturales, Facultad de CienciasUniversidad Nacional Autónoma de México, CoyoacánCiudad de MéxicoMexico
| | - Sylvanus Mensah
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculté des Sciences AgronomiquesUniversité d'Abomey CalaviCotonouBenin
| | - Xiangcheng Mi
- State Key Laboratory of Vegetation and Environmental Change, Institute of BotanyChinese Academy of SciencesBeijingChina
| | - Stéphane Momo
- AMAP LabMontpellier University, IRD, CIRAD, CNRS, INRAEMontpellierFrance
- Laboratoire de Botanique systématique et d'Ecologie, Département des Sciences Biologiques, Ecole Normale SupérieureUniversité de Yaoundé IYaoundéCameroon
| | - Glenn R. Moncrieff
- Fynbos Node, South African Environmental Observation NetworkClaremontSouth Africa
- Centre for Statistics in Ecology, Environment and Conservation, Department of Statistical SciencesUniversity of Cape TownRondeboschSouth Africa
| | - Francisco Mora
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de MéxicoMoreliaMichoacánMexico
| | - Sarath P. Nissanka
- Department of Crop Science, Faculty of AgricultureUniversity of PeradeniyaPeradeniyaSri Lanka
| | | | | | - Raphaël Pelissier
- AMAP LabMontpellier University, IRD, CIRAD, CNRS, INRAEMontpellierFrance
| | - Pablo L. Peri
- Universidad Nacional de la Patagonia Austral (UNPA) ‐ Instituto Nacional de Tecnología Agropecuaria (INTA) ‐ CONICETRío GallegosSanta CruzArgentina
| | - Pierre Ploton
- AMAP LabMontpellier University, IRD, CIRAD, CNRS, INRAEMontpellierFrance
| | - Lourens Poorter
- Forest Ecology and Forest Management GroupWageningen UniversityWageningenThe Netherlands
| | | | - Hassan Pourbabaei
- Department of Forestry, Faculty of Natural ResourcesUniversity of GuilanSomehsaraIran
| | - Juan Manuel Dupuy‐Rada
- Centro de Investigación Científica de Yucatán A.C., Unidad de Recursos NaturalesMéridaYucatánMexico
| | - Sabina C. Ribeiro
- Centro de Ciências Biológicas e da NaturezaUniversidade Federal do Acre, Campus UniversitárioRio BrancoBrazil
| | - Casey Ryan
- School of GeoSciencesUniversity of EdinburghEdinburghUK
| | - Anvar Sanaei
- Systematic Botany and Functional Biodiversity, Institute of BiologyLeipzig UniversityLeipzigGermany
| | | | - Michael Schlund
- Department of Natural Resources, Faculty of Geo‐information Science and Earth Observation (ITC)University of TwenteEnschedeThe Netherlands
| | - Giacomo Sellan
- UMR EcoFoG, CNRSKourouFrench Guiana
- Department of Natural SciencesManchester Metropolitan UniversityManchesterUK
| | - Alexander Shenkin
- Environmental Change Institute, School of Geography and the EnvironmentUniversity of OxfordOxfordUK
| | - Bonaventure Sonké
- Laboratoire de Botanique systématique et d'Ecologie, Département des Sciences Biologiques, Ecole Normale SupérieureUniversité de Yaoundé IYaoundéCameroon
| | - Frank J. Sterck
- Forest Ecology and Forest Management GroupWageningen UniversityWageningenThe Netherlands
| | - Martin Svátek
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood TechnologyMendel University in BrnoBrnoCzech Republic
| | - Kentaro Takagi
- Field Science Center for Northern BiosphereHokkaido UniversityHoronobeJapan
| | - Anna T. Trugman
- Department of GeographyUniversity of California Santa BarbaraSanta BarbaraCaliforniaUSA
| | - Farman Ullah
- Forest Ecology Research Group, College of Life SciencesHebei UniversityBaodingHebeiChina
- Department of Forest Resources Management, College of ForestryNanjing Forestry UniversityNanjingJiangsuChina
| | | | - Ahmad Valipour
- Department of Forestry and The Center for Research and Development of Northern Zagros ForestryUniversity of KurdistanErbilIran
| | | | - Alejandra G. Vovides
- School of Geographical and Earth SciencesUniversity of Glasgow, East QuadrangleGlasgowUK
| | - Weiwei Wang
- State Key Laboratory of Vegetation and Environmental Change, Institute of BotanyChinese Academy of SciencesBeijingChina
| | - Li‐Qiu Wang
- Department of Forest Resources Management, College of ForestryNanjing Forestry UniversityNanjingJiangsuChina
| | - Christian Wirth
- Systematic Botany and Functional Biodiversity, Institute of BiologyUniversity of LeipzigLeipzigGermany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
| | - Murray Woods
- Ontario Ministry of Natural ResourcesNorth BayOntarioCanada
| | - Wenhua Xiang
- Faculty of Life Science and TechnologyCentral South University of Forestry and TechnologyChangshaHunanChina
| | | | - Yaozhan Xu
- State Key Laboratory of Aquatic Botany and Watershed EcologyWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- Center of Conservation Biology, Core Botanical GardensChinese Academy of SciencesWuhanChina
| | - Toshihiro Yamada
- Graduate School of Integrated Sciences of LifeHiroshima UniversityHiroshimaJapan
| | - Miguel A. Zavala
- Forest Ecology and Restoration Group (FORECO), Departamento de Ciencias de la VidaUniversidad de AlcaláMadridSpain
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7
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Bernstein J, Giménez-Arnau A, Hide M, Maurer M, Sitz K, Sussman G, Montana P, Barbier N, Severin T. P047 COMPLETE RESPONSE WITH LIGELIZUMAB IN CHRONIC SPONTANEOUS URTICARIA: A COMPOSITE SCORE OF SYMPTOMS AND QUALITY-OF-LIFE. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Martin-Ducup O, Mofack G, Wang D, Raumonen P, Ploton P, Sonké B, Barbier N, Couteron P, Pélissier R. Evaluation of automated pipelines for tree and plot metric estimation from TLS data in tropical forest areas. Ann Bot 2021; 128:753-766. [PMID: 33876194 PMCID: PMC8557371 DOI: 10.1093/aob/mcab051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND AIMS Terrestrial LiDAR scanning (TLS) data are of great interest in forest ecology and management because they provide detailed 3-D information on tree structure. Automated pipelines are increasingly used to process TLS data and extract various tree- and plot-level metrics. With these developments comes the risk of unknown reliability due to an absence of systematic output control. In the present study, we evaluated the estimation errors of various metrics, such as wood volume, at tree and plot levels for four automated pipelines. METHODS We used TLS data collected from a 1-ha plot of tropical forest, from which 391 trees >10 cm in diameter were fully processed using human assistance to obtain control data for tree- and plot-level metrics. KEY RESULTS Our results showed that fully automated pipelines led to median relative errors in the quantitative structural model (QSM) volume ranging from 39 to 115 % at the tree level and 10 to 134 % at the 1-ha plot level. For tree-level metrics, the median error for the crown-projected area ranged from 46 to 59 % and that for the crown-hull volume varied from 72 to 88 %. This result suggests that the tree isolation step is the weak link in automated pipeline methods. We further analysed how human assistance with automated pipelines can help reduce the error in the final QSM volume. At the tree scale, we found that isolating trees using human assistance reduced the error in wood volume by a factor of 10. At the 1-ha plot scale, locating trees with human assistance reduced the error by a factor of 3. CONCLUSIONS Our results suggest that in complex tropical forests, fully automated pipelines may provide relatively unreliable metrics at the tree and plot levels, but limited human assistance inputs can significantly reduce errors.
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Affiliation(s)
| | - Gislain Mofack
- Plant Systematics and Ecology Laboratory, Higher Teacher’s Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Di Wang
- Department of Built Environment, School of Engineering, Aalto University, Helsinki, Finland
| | - Pasi Raumonen
- Mathematics, Faculty of Information Technology and Communication Sciences, Tampere University, Tampere, Finland
| | - Pierre Ploton
- AMAP, Univ. Montpellier, IRD, CNRS, CIRAD, INRAE, Montpellier, France
| | - Bonaventure Sonké
- Plant Systematics and Ecology Laboratory, Higher Teacher’s Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Nicolas Barbier
- AMAP, Univ. Montpellier, IRD, CNRS, CIRAD, INRAE, Montpellier, France
| | - Pierre Couteron
- AMAP, Univ. Montpellier, IRD, CNRS, CIRAD, INRAE, Montpellier, France
| | - Raphaël Pélissier
- AMAP, Univ. Montpellier, IRD, CNRS, CIRAD, INRAE, Montpellier, France
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9
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Janocha R, Giménez-Arnau A, Maurer M, Bernstein J, Barbier N, hua E, Severin T, Balp M. P155 SLEEP AND QUALITY OF LIFE IMPROVES WITH BETTER CONTROL OF URTICARIA SYMPTOMS: LIGELIZUMAB PHASE-2B STUDIES. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Bernstein J, Maurer M, Giménez-Arnau A, Soong W, Metz M, Barbier N, Barve A, Severin T, Balp M, Janocha R. P153 COMPLETE CONTROL OF URTICARIA SYMPTOMS WITH LIGELIZUMAB HELPS NORMALIZE QUALITY OF LIFE. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Sussman G, Sitz K, Metz M, Hide M, Maurer M, Barbier N, Hua E, Janocha R, Severin T. D101 EFFICACY OF LIGELIZUMAB IN PATIENTS WITH CHRONIC SPONTANEOUS URTICARIA INADEQUATELY CONTROLLED WITH OMALIZUMAB. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Martin‐Ducup O, Ploton P, Barbier N, Momo Takoudjou S, Mofack G, Kamdem NG, Fourcaud T, Sonké B, Couteron P, Pélissier R. Terrestrial laser scanning reveals convergence of tree architecture with increasingly dominant crown canopy position. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13678] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
| | - Pierre Ploton
- AMAP, IRDCNRSCIRADINRAUniversity of Montpellier Montpellier France
| | - Nicolas Barbier
- AMAP, IRDCNRSCIRADINRAUniversity of Montpellier Montpellier France
| | - Stéphane Momo Takoudjou
- Plant Systematic and Ecology Laboratory Higher Teacher's Training College University of Yaoundé I Yaoundé Cameroon
| | - Gislain Mofack
- Plant Systematic and Ecology Laboratory Higher Teacher's Training College University of Yaoundé I Yaoundé Cameroon
| | - Narcisse Guy Kamdem
- Plant Systematic and Ecology Laboratory Higher Teacher's Training College University of Yaoundé I Yaoundé Cameroon
| | - Thierry Fourcaud
- AMAP, IRDCNRSCIRADINRAUniversity of Montpellier Montpellier France
| | - Bonaventure Sonké
- Plant Systematic and Ecology Laboratory Higher Teacher's Training College University of Yaoundé I Yaoundé Cameroon
| | - Pierre Couteron
- AMAP, IRDCNRSCIRADINRAUniversity of Montpellier Montpellier France
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13
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Ploton P, Mortier F, Barbier N, Cornu G, Réjou-Méchain M, Rossi V, Alonso A, Bastin JF, Bayol N, Bénédet F, Bissiengou P, Chuyong G, Demarquez B, Doucet JL, Droissart V, Kamdem NG, Kenfack D, Memiaghe H, Moses L, Sonké B, Texier N, Thomas D, Zebaze D, Pélissier R, Gourlet-Fleury S. A map of African humid tropical forest aboveground biomass derived from management inventories. Sci Data 2020; 7:221. [PMID: 32641808 PMCID: PMC7343822 DOI: 10.1038/s41597-020-0561-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/08/2020] [Indexed: 01/12/2023] Open
Abstract
Forest biomass is key in Earth carbon cycle and climate system, and thus under intense scrutiny in the context of international climate change mitigation initiatives (e.g. REDD+). In tropical forests, the spatial distribution of aboveground biomass (AGB) remains, however, highly uncertain. There is increasing recognition that progress is strongly limited by the lack of field observations over large and remote areas. Here, we introduce the Congo basin Forests AGB (CoFor-AGB) dataset that contains AGB estimations and associated uncertainty for 59,857 1-km pixels aggregated from nearly 100,000 ha of in situ forest management inventories for the 2000 - early 2010s period in five central African countries. A comprehensive error propagation scheme suggests that the uncertainty on AGB estimations derived from c. 0.5-ha inventory plots (8.6-15.0%) is only moderately higher than the error obtained from scientific sampling plots (8.3%). CoFor-AGB provides the first large scale view of forest AGB spatial variation from field data in central Africa, the second largest continuous tropical forest domain of the world.
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Affiliation(s)
- Pierre Ploton
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France.
| | - Frédéric Mortier
- CIRAD, UPR Forêts et Sociétés, F-34398 Montpellier, France; Université de Montpellier, F-34000, Montpellier, France
| | - Nicolas Barbier
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Guillaume Cornu
- CIRAD, UPR Forêts et Sociétés, F-34398 Montpellier, France; Université de Montpellier, F-34000, Montpellier, France
| | | | - Vivien Rossi
- CIRAD, UPR Forêts et Sociétés, Yaoundé, Cameroun
| | - Alfonso Alonso
- Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA
| | - Jean-François Bastin
- CAVELab Computational and Applied Vegetation Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University, Ghent, 9000, Belgium
| | - Nicolas Bayol
- FRM Ingénierie, 34130, Mauguio - Grand Montpellier, France
| | - Fabrice Bénédet
- CIRAD, UPR Forêts et Sociétés, F-34398 Montpellier, France; Université de Montpellier, F-34000, Montpellier, France
| | - Pulchérie Bissiengou
- Institut de pharmacopée et de médecine traditionnelle (Herbier National du Gabon), CENAREST, Libreville, Gabon
| | - Georges Chuyong
- Department of Plant Science, Faculty of Science, University of Buea, Buea, Cameroon
| | | | - Jean-Louis Doucet
- Forest is Life, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Vincent Droissart
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Narcisse Guy Kamdem
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - David Kenfack
- ForestGEO, Smithsonian Tropical Research Institute, NMNH - MRC 166, P.O. Box 37012, Washington, DC, 20013-7012, USA
| | - Hervé Memiaghe
- Institut de Recherche en Ecologie Tropicale/Centre National de la Recherche Scientifique et Technologique, Libreville, Gabon
| | - Libalah Moses
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Bonaventure Sonké
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Nicolas Texier
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
- Faculty of Sciences, Evolutionary Biology and Ecology, Université Libre de Bruxelles, CP160/12, 50 Av. F. Roosevelt, 1050, Brussels, Belgium
| | - Duncan Thomas
- School of Biological Sciences, Washington State University, 14204 NE Salmon Creek Ave, Vancouver, WA, 98686, USA
| | - Donatien Zebaze
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroun
| | - Raphaël Pélissier
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Sylvie Gourlet-Fleury
- CIRAD, UPR Forêts et Sociétés, F-34398 Montpellier, France; Université de Montpellier, F-34000, Montpellier, France
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14
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Momo ST, Ploton P, Martin-Ducup O, Lehnebach R, Fortunel C, Sagang LBT, Boyemba F, Couteron P, Fayolle A, Libalah M, Loumeto J, Medjibe V, Ngomanda A, Obiang D, Pélissier R, Rossi V, Yongo O, Sonké B, Barbier N. Leveraging Signatures of Plant Functional Strategies in Wood Density Profiles of African Trees to Correct Mass Estimations From Terrestrial Laser Data. Sci Rep 2020; 10:2001. [PMID: 32029780 PMCID: PMC7005061 DOI: 10.1038/s41598-020-58733-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/16/2020] [Indexed: 11/09/2022] Open
Abstract
Wood density (WD) relates to important tree functions such as stem mechanics and resistance against pathogens. This functional trait can exhibit high intraindividual variability both radially and vertically. With the rise of LiDAR-based methodologies allowing nondestructive tree volume estimations, failing to account for WD variations related to tree function and biomass investment strategies may lead to large systematic bias in AGB estimations. Here, we use a unique destructive dataset from 822 trees belonging to 51 phylogenetically dispersed tree species harvested across forest types in Central Africa to determine vertical gradients in WD from the stump to the branch tips, how these gradients relate to regeneration guilds and their implications for AGB estimations. We find that decreasing WD from the tree base to the branch tips is characteristic of shade-tolerant species, while light-demanding and pioneer species exhibit stationary or increasing vertical trends. Across all species, the WD range is narrower in tree crowns than at the tree base, reflecting more similar physiological and mechanical constraints in the canopy. Vertical gradients in WD induce significant bias (10%) in AGB estimates when using database-derived species-average WD data. However, the correlation between the vertical gradients and basal WD allows the derivation of general correction models. With the ongoing development of remote sensing products providing 3D information for entire trees and forest stands, our findings indicate promising ways to improve greenhouse gas accounting in tropical countries and advance our understanding of adaptive strategies allowing trees to grow and survive in dense rainforests.
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Affiliation(s)
- Stéphane Takoudjou Momo
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroon.,AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Pierre Ploton
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | | | - Romain Lehnebach
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Ghent University, Coupure Links 653, B-, 9000, Gent, Belgium
| | - Claire Fortunel
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Le Bienfaiteur Takougoum Sagang
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroon.,AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Faustin Boyemba
- University of Kisangani, Democratic Republic of Congo, Kisangani, Republic of Congo
| | - Pierre Couteron
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Adeline Fayolle
- Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Moses Libalah
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroon
| | - Joel Loumeto
- University of Marien Ngouabi, Brazzaville, Republic of Congo
| | - Vincent Medjibe
- Commission des Forêts d'Afrique Centrale (COMIFAC), Yaoundé, BP, 20818, Cameroon
| | - Alfred Ngomanda
- Institut de Recherche en Ecologie Tropicale (IRET/CENAREST), BP, 13354, Libreville, Gabon
| | | | - Raphaël Pélissier
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France
| | - Vivien Rossi
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroon.,Commission des Forêts d'Afrique Centrale (COMIFAC), Yaoundé, BP, 20818, Cameroon.,RU Forests and Societies, CIRAD, Yaoundé, Cameroon
| | - Olga Yongo
- University of Bangui, Bangui, Central African Republic
| | | | - Bonaventure Sonké
- Plant Systematic and Ecology Laboratory (LaBosystE), Department of Biology, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 047, Yaoundé, Cameroon
| | - Nicolas Barbier
- AMAP, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France.
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15
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Gorin S, Fablet C, Quéguiner S, Barbier N, Paboeuf F, Hervé S, Rose N, Simon G. Assessment of Influenza D Virus in Domestic Pigs and Wild Boars in France: Apparent Limited Spread within Swine Populations Despite Serological Evidence of Breeding Sow Exposure. Viruses 2019; 12:v12010025. [PMID: 31878133 PMCID: PMC7019313 DOI: 10.3390/v12010025] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022] Open
Abstract
In order to assess influenza D virus (IDV) infections in swine in France, reference reagents were produced in specific pathogen free pigs to ensure serological and virological analyses. Hemagglutination inhibition (HI) assays were carried out on 2090 domestic pig sera collected in 2012-2018 in 102 farms. Only 31 sera from breeding sows sampled in 2014-2015 in six farrow-to-finish herds with respiratory disorders contained IDV-specific antibodies. In two of them, within-herd percentage of positive samples (73.3% and 13.3%, respectively) and HI titers (20-160) suggested IDV infections, but virus persistence was not confirmed following new sampling in 2017. All growing pigs tested seronegative, whatever their age and the sampling year. Moreover, PB1-gene RT-qPCR performed on 452 nasal swabs taken in 2015-2018 on pigs with acute respiratory syndrome (137 farms) gave negative results. In Corse, a Mediterranean island where pigs are mainly bred free-range, 2.3% of sera (n = 177) sampled on adult pigs in 2013-2014 obtained low HI titers. Finally, 0.5% of sera from wild boars hunted in 2009-2016 (n = 644) tested positive with low HI titers. These results provide the first serological evidence that sows were exposed to IDV in France but with a limited spread within the swine population.
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Affiliation(s)
- Stéphane Gorin
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.G.); (S.Q.); (N.B.); (S.H.)
| | - Christelle Fablet
- Epidemiology, Health and Welfare Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (C.F.); (N.R.)
| | - Stéphane Quéguiner
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.G.); (S.Q.); (N.B.); (S.H.)
| | - Nicolas Barbier
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.G.); (S.Q.); (N.B.); (S.H.)
| | - Frédéric Paboeuf
- SPF Pig Production and Experimentation, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France;
| | - Séverine Hervé
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.G.); (S.Q.); (N.B.); (S.H.)
| | - Nicolas Rose
- Epidemiology, Health and Welfare Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (C.F.); (N.R.)
| | - Gaëlle Simon
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.G.); (S.Q.); (N.B.); (S.H.)
- Correspondence: ; Tel.: +33-296-010-163
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16
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Carrie C, Magné N, Burban-Provost P, Sargos P, Latorzeff I, Lagrange JL, Supiot S, Belkacemi Y, Peiffert D, Allouache N, Dubray BM, Servagi-Vernat S, Suchaud JP, Crehange G, Guerif S, Brihoum M, Barbier N, Graff-Cailleaud P, Ruffion A, Dussart S, Ferlay C, Chabaud S. Short-term androgen deprivation therapy combined with radiotherapy as salvage treatment after radical prostatectomy for prostate cancer (GETUG-AFU 16): a 112-month follow-up of a phase 3, randomised trial. Lancet Oncol 2019; 20:1740-1749. [DOI: 10.1016/s1470-2045(19)30486-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 12/22/2022]
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17
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Chastagner A, Bonin E, Fablet C, Quéguiner S, Hirchaud E, Lucas P, Gorin S, Barbier N, Béven V, Garin E, Blanchard Y, Rose N, Hervé S, Simon G. Virus persistence in pig herds led to successive reassortment events between swine and human influenza A viruses, resulting in the emergence of a novel triple-reassortant swine influenza virus. Vet Res 2019; 50:77. [PMID: 31590684 PMCID: PMC6781375 DOI: 10.1186/s13567-019-0699-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/23/2019] [Indexed: 01/05/2023] Open
Abstract
This report describes the detection of a triple reassortant swine influenza A virus of H1avN2 subtype. It evolved from an avian-like swine H1avN1 that first acquired the N2 segment from a seasonal H3N2, then the M segment from a 2009 pandemic H1N1, in two reassortments estimated to have occurred 10 years apart. This study illustrates how recurrent influenza infections increase the co-infection risk and facilitate evolutionary jumps by successive gene exchanges. It recalls the importance of appropriate biosecurity measures inside holdings to limit virus persistence and interspecies transmissions, which both contribute to the emergence of new potentially zoonotic viruses.
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Affiliation(s)
- Amélie Chastagner
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Emilie Bonin
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France.,INRA, US 1426, GeT-PlaGe, 24 chemin de borde rouge - Auzeville, CS 52627, 31326, Castanet-Tolosan, France
| | - Christelle Fablet
- Epidemiology, Health and Welfare Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Stéphane Quéguiner
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Edouard Hirchaud
- Viral Genetic and Biosecurity Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Pierrick Lucas
- Viral Genetic and Biosecurity Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Stéphane Gorin
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Nicolas Barbier
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Véronique Béven
- Viral Genetic and Biosecurity Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Emmanuel Garin
- Animal Health Service, Coop de France, 43 Rue Sedaine, 75538, Paris cedex 11, France.,Operational Team, ESA Platform, 31 Avenue Garnier, 69007, Lyon, France.,GDS-France, 37 Rue de Lyon, 75012, Paris, France
| | - Yannick Blanchard
- Viral Genetic and Biosecurity Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Nicolas Rose
- Epidemiology, Health and Welfare Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Séverine Hervé
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France.,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France
| | - Gaëlle Simon
- Swine Virology Immunology Unit, Ploufragan-Plouzané-Niort Laboratory, ANSES, BP53, 22440, Ploufragan, France. .,Bretagne Loire University, Cité internationale, 1 place Paul Ricoeur, CS 54417, 35044, Rennes, France.
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18
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Carrie C, Magné N, Burban-Provost P, Sargos P, Latorzeff I, Supiot S, Belkacemi Y, Peiffert D, Allouache N, Dubray BM, Servagi Vernat S, Suchaud JP, Crehange G, Guerif S, Brihoum M, Barbier N, Graff-Cailleaud P, Ruffion A, Chabaud S. Interest of short hormonotherapy (HT) associated with radiotherapy (RT) as salvage treatment for metastatic free survival (MFS) after radical prostatectomy (RP): Update at 9 years of the GETUG-AFU 16 phase III randomized trial (NCT00423475). J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.5001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5001 Background: RT is the standard salvage treatment after RP. The role of HT is not formally demonstrated to date. This trial assessed the efficacy of RT alone vs RT+HT in terms of progression-free survival (PFS), metastase-free survival (MFS) and overall survival (OS) in patients with biological relapse (BR) after RP. After a median follow-up (FU) duration of 5.3 years, we previously reported [Carrie C, Lancet Oncol 2016] a benefit in PFS (80% vs 62% PFS free at 5 years; p < 0.0001) in the combined arm, whatever the risk subgroups. Methods: Patients (pts) were randomized (1:1) to RT alone or RT+HT (goserelin, for 6 months). The randomization was stratified according to radiotherapy modality and risk group. Low risk was defined as Gleason score < 8, surgical margins+, psa doubling time > 8 months and no seminal vesicle involment. Assuming a 45% 5-year PFS of 45% in the RT arm, the trial required 369 pts per arm to detect an improvement of 12% on PFS in RT+HT arm (90% power and 5% bilateral alpha risk), possibly translating into a 10% gain in OS (75% to 85% with 80% power). Biological relapse (BR) was defined according to ASTRO-consensus. Results: At the time of data cutoff (March 2019), the median duration follow-up was 112 months. We confirm the benefit of RT+HT on PFS (HR = 0.54 [CI95% = 0.43-0.68] ; p < 0.0001) whatever the risk subgroup (HR = 0.47 [CI95% = 0.28-0.80] and 0.56 [CI95% = 0.44-0.73] for low and high risk patients, respectively. Metastatic free survival (MFS) is significantly improved in the combined arm (HR = 0.73 [CI95% = 0.54-0.98] ; p = 0.034) with 69% [CI95% = 63-74] versus 75% [CI95% = 70-80] of MFS at 10 years for RT alone and RT+HT, respectively. Conclusions: Salvage radiotherapy combined with short term HT significantly improved 10-years metastatic free survival compared with salvage radiotherapy alone. GETUG-16 considered in the context of previously published results from RTOG-9601, confirm that this strategy can be considered as the new standard for salvage treatment after radical prostatectomy. Clinical trial information: NCT00423475.
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Affiliation(s)
| | - Nicolas Magné
- Medical Oncology Department, AP-HP, Salpetriere Hospital, University Paris VI, Paris, France
| | | | | | - Igor Latorzeff
- Clinique Pasteur Groupe Oncorad Garonne, Toulouse, France
| | - Stephane Supiot
- Institut de Cancerologie de l'Ouest - Rene Gauducheau, Nantes, France
| | | | | | | | | | | | | | | | | | | | | | | | - Alain Ruffion
- Department of Urology, Centre Hospitalier Lyon Sud, Pierre-Benite, France
| | - Sylvie Chabaud
- Statistician - GINECO - Centre Léon-Bérard, Lyon, France
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19
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Duncanson L, Armston J, Disney M, Avitabile V, Barbier N, Calders K, Carter S, Chave J, Herold M, Crowther TW, Falkowski M, Kellner JR, Labrière N, Lucas R, MacBean N, McRoberts RE, Meyer V, Næsset E, Nickeson JE, Paul KI, Phillips OL, Réjou-Méchain M, Román M, Roxburgh S, Saatchi S, Schepaschenko D, Scipal K, Siqueira PR, Whitehurst A, Williams M. The Importance of Consistent Global Forest Aboveground Biomass Product Validation. Surv Geophys 2019; 40:979-999. [PMID: 31395994 PMCID: PMC6647371 DOI: 10.1007/s10712-019-09538-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 04/27/2019] [Indexed: 05/17/2023]
Abstract
Several upcoming satellite missions have core science requirements to produce data for accurate forest aboveground biomass mapping. Largely because of these mission datasets, the number of available biomass products is expected to greatly increase over the coming decade. Despite the recognized importance of biomass mapping for a wide range of science, policy and management applications, there remains no community accepted standard for satellite-based biomass map validation. The Committee on Earth Observing Satellites (CEOS) is developing a protocol to fill this need in advance of the next generation of biomass-relevant satellites, and this paper presents a review of biomass validation practices from a CEOS perspective. We outline the wide range of anticipated user requirements for product accuracy assessment and provide recommendations for the validation of biomass products. These recommendations include the collection of new, high-quality in situ data and the use of airborne lidar biomass maps as tools toward transparent multi-resolution validation. Adoption of community-vetted validation standards and practices will facilitate the uptake of the next generation of biomass products.
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Affiliation(s)
- L. Duncanson
- Department of Geographical Sciences, University of Maryland, College Park, 2181 Lefrak Hall, College Park, MD 20742 USA
| | - J. Armston
- Department of Geographical Sciences, University of Maryland, College Park, 2181 Lefrak Hall, College Park, MD 20742 USA
| | - M. Disney
- Department of Geography, University College London, Gower Street, London, WC1E 6BT UK
| | - V. Avitabile
- European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027 Ispra, Italy
| | - N. Barbier
- AMAP, IRD, CIRAD,
CNRS, INRA, Montpellier University, TA A51/PS2, 34398 Montpellier cedex 5, France
| | - K. Calders
- CAVElab – Computational and Applied Vegetation Ecology, Ghent University, Room A2.089, Coupure Links 653, 9000 Ghent, Belgium
| | - S. Carter
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University and Research, Droevendaalsesteeg 3, 6708 PB Wageningen, The Netherlands
| | - J. Chave
- Laboratoire Evolution et Diversit. Biologique, UMR 5174, CNRS, Universit. Toulouse Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France
| | - M. Herold
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University and Research, Droevendaalsesteeg 3, 6708 PB Wageningen, The Netherlands
| | - T. W. Crowther
- Institute of Integrative Biology, ETH Zürich, Univeritätstrasse 16, 8006 Zurich, Switzerland
| | - M. Falkowski
- Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523 USA
| | - J. R. Kellner
- Institute at Brown for Environment and Society, Brown University, Providence, RI 02912 USA
- Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912 USA
| | - N. Labrière
- Laboratoire Evolution et Diversit. Biologique, UMR 5174, CNRS, Universit. Toulouse Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France
| | - R. Lucas
- Earth Observation and Ecosystem Dynamics Research Group, Department of Geography and Earth Sciences (DGES), Aberystwyth University, Aberystwyth, Wales SY23 3DB UK
| | - N. MacBean
- Department of Geography, Indiana University, 701 E. Kirkwood Ave., Bloomington, IN 47405 USA
| | - R. E. McRoberts
- USDA Forest Service, Northern Research Station, Saint Paul, 1992 Folwell Ave, St Paul, MN 55108 USA
| | - V. Meyer
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - E. Næsset
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, NMBU, P.O. Box 5003, 1432 Ås, Norway
| | - J. E. Nickeson
- NASA Goddard Space Flight Center/Science Systems and Applications Inc., 10210 Greenbelt Rd #600, Lanham, MD 20706 USA
| | - K. I. Paul
- CSIRO Land and Water, GPO Box 1700, Canberra, ACT 2601 Australia
| | - O. L. Phillips
- School of Geography, University of Leeds, Leeds, LS2 9JT UK
| | - M. Réjou-Méchain
- AMAP, IRD, CIRAD,
CNRS, INRA, Montpellier University, TA A51/PS2, 34398 Montpellier cedex 5, France
| | - M. Román
- Earth from Space Institute, Universities Space Research Association, Columbia, MD USA
| | - S. Roxburgh
- CSIRO Land and Water, GPO Box 1700, Canberra, ACT 2601 Australia
| | - S. Saatchi
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | - D. Schepaschenko
- International Institute for Applied Systems Analysis, Schlossplatz 1, 2361 Laxenburg, Austria
| | - K. Scipal
- European Space Agency, ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
| | - P. R. Siqueira
- Department of Electrical and Computer Engineering, 201 Marcus Hall, University of Massachusetts, 100 Natural Resources Road, Amherst, MA 01003 USA
| | - A. Whitehurst
- Arctic Slope Federal Technical Services, 7000 Muirkirk Meadows Dr #100, Laurel, MD 20707 USA
| | - M. Williams
- School of GeoScience, University of Edinburgh, Drummond St, Edinburgh, EH8 9XP UK
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20
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Bonin E, Quéguiner S, Woudstra C, Gorin S, Barbier N, Harder TC, Fach P, Hervé S, Simon G. Molecular subtyping of European swine influenza viruses and scaling to high-throughput analysis. Virol J 2018; 15:7. [PMID: 29316958 PMCID: PMC5761149 DOI: 10.1186/s12985-018-0920-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 01/02/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Swine influenza is a respiratory infection of pigs that may have a significant economic impact in affected herds and pose a threat to the human population since swine influenza A viruses (swIAVs) are zoonotic pathogens. Due to the increasing genetic diversity of swIAVs and because novel reassortants or variants may become enzootic or have zoonotic implications, surveillance is strongly encouraged. Therefore, diagnostic tests and advanced technologies able to identify the circulating strains rapidly are critically important. RESULTS Several reverse transcription real-time PCR assays (RT-qPCRs) were developed to subtype European swIAVs in clinical samples previously identified as containing IAV genome. The RT-qPCRs aimed to discriminate HA genes of four H1 genetic lineages (H1av, H1hu, H1huΔ146-147, H1pdm) and one H3 lineage, and NA genes of two N1 lineages (N1, N1pdm) and one N2 lineage. After individual validation, each RT-qPCR was adapted to high-throughput analyses in parallel to the amplification of the IAV M gene (target for IAV detection) and the β-actin gene (as an internal control), in order to test the ten target genes simultaneously on a large number of clinical samples, using low volumes of reagents and RNA extracts. CONCLUSION The RT-qPCRs dedicated to IAV molecular subtyping enabled the identification of swIAVs from the four viral subtypes that are known to be enzootic in European pigs, i.e. H1avN1, H1huN2, H3N2 and H1N1pdm. They also made it possible to discriminate a new antigenic variant (H1huN2Δ146-147) among H1huN2 viruses, as well as reassortant viruses, such as H1huN1 or H1avN2 for example, and virus mixtures. These PCR techniques exhibited a gain in sensitivity as compared to end-point RT-PCRs, enabling the characterization of biological samples with low genetic loads, with considerable time saving. Adaptation to high-throughput analyses appeared effective, both in terms of specificity and sensitivity. This new development opens novel perspectives in diagnostic capacities that could be very useful for swIAV surveillance and large-scale epidemiological studies.
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Affiliation(s)
- Emilie Bonin
- ANSES, Ploufragan-Plouzané Laboratory, Swine Virology Immunology Unit, National Reference Laboratory for Swine Influenza, Ploufragan, France.,Bretagne Loire University, Rennes, France.,Current address: INRA, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | - Stéphane Quéguiner
- ANSES, Ploufragan-Plouzané Laboratory, Swine Virology Immunology Unit, National Reference Laboratory for Swine Influenza, Ploufragan, France.,Bretagne Loire University, Rennes, France
| | - Cédric Woudstra
- ANSES, Laboratory for Food Safety, IdentyPath Platform, Maisons-Alfort, France
| | - Stéphane Gorin
- ANSES, Ploufragan-Plouzané Laboratory, Swine Virology Immunology Unit, National Reference Laboratory for Swine Influenza, Ploufragan, France.,Bretagne Loire University, Rennes, France
| | - Nicolas Barbier
- ANSES, Ploufragan-Plouzané Laboratory, Swine Virology Immunology Unit, National Reference Laboratory for Swine Influenza, Ploufragan, France.,Bretagne Loire University, Rennes, France
| | - Timm C Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler Institute, Greifswald-Insel Riems, Germany
| | - Patrick Fach
- ANSES, Laboratory for Food Safety, IdentyPath Platform, Maisons-Alfort, France
| | - Séverine Hervé
- ANSES, Ploufragan-Plouzané Laboratory, Swine Virology Immunology Unit, National Reference Laboratory for Swine Influenza, Ploufragan, France.,Bretagne Loire University, Rennes, France
| | - Gaëlle Simon
- ANSES, Ploufragan-Plouzané Laboratory, Swine Virology Immunology Unit, National Reference Laboratory for Swine Influenza, Ploufragan, France. .,Bretagne Loire University, Rennes, France.
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21
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Momo Takoudjou S, Ploton P, Sonké B, Hackenberg J, Griffon S, Coligny F, Kamdem NG, Libalah M, Mofack GII, Le Moguédec G, Pélissier R, Barbier N. Using terrestrial laser scanning data to estimate large tropical trees biomass and calibrate allometric models: A comparison with traditional destructive approach. Methods Ecol Evol 2017. [DOI: 10.1111/2041-210x.12933] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphane Momo Takoudjou
- Plant Systematic and Ecology LaboratoryHigher Teacher's Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
| | - Pierre Ploton
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
| | - Bonaventure Sonké
- Plant Systematic and Ecology LaboratoryHigher Teacher's Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
| | - Jan Hackenberg
- Unité Biogéochimie des Ecosystèmes Forestiers (BEF)INRA Champenoux France
- Laboratory of Forest Inventory (LIF)Institut National de l'Information Géographique et Forestière (IGN) Nancy France
| | - Sébastien Griffon
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
| | - Francois Coligny
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
| | - Narcisse Guy Kamdem
- Plant Systematic and Ecology LaboratoryHigher Teacher's Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
| | - Moses Libalah
- Plant Systematic and Ecology LaboratoryHigher Teacher's Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
| | - Gislain II Mofack
- Plant Systematic and Ecology LaboratoryHigher Teacher's Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
| | - Gilles Le Moguédec
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
| | - Raphaël Pélissier
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
| | - Nicolas Barbier
- Plant Systematic and Ecology LaboratoryHigher Teacher's Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
- Botany and Modelling of Plant Architecture and Vegetation (AMAP) LaboratoryFrench National Research Institute for Sustainable Development (IRD), Center for International Cooperation in Agricultural Research for Development (CIRAD), Scientific Research National Center (CNRS)Institut national de la recherche agronomique (INRA)Montpellier University Montpellier France
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22
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De Pauw A, Andre E, Sekkali B, Bouzin C, Esfahani H, Barbier N, Loriot A, De Smet C, Vanhoutte L, Moniotte S, Gerber B, di Mauro V, Catalucci D, Feron O, Hilfiker-Kleiner D, Balligand JL. Dnmt3a-mediated inhibition of Wnt in cardiac progenitor cells improves differentiation and remote remodeling after infarction. JCI Insight 2017; 2:91810. [PMID: 28614798 DOI: 10.1172/jci.insight.91810] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 05/15/2017] [Indexed: 12/28/2022] Open
Abstract
Adult cardiac progenitor cells (CPCs) display a low capacity to differentiate into cardiomyocytes in injured hearts, strongly limiting the regenerative capacity of the mammalian myocardium. To identify new mechanisms regulating CPC differentiation, we used primary and clonally expanded Sca-1+ CPCs from murine adult hearts in homotypic culture or coculture with cardiomyocytes. Expression kinetics analysis during homotypic culture differentiation showed downregulation of Wnt target genes concomitant with increased expression of the Wnt antagonist, Wnt inhibitory factor 1 (Wif1), which is necessary to stimulate CPC differentiation. We show that the expression of the Wif1 gene is repressed by DNA methylation and regulated by the de novo DNA methyltransferase Dnmt3a. In addition, miR-29a is upregulated early during CPC differentiation and downregulates Dnmt3a expression, thereby decreasing Wif1 gene methylation and increasing the efficiency of differentiation of Sca-1+ CPCs in vitro. Extending these findings in vivo, transient silencing of Dnmt3a in CPCs subsequently injected in the border zone of infarcted mouse hearts improved CPC differentiation in situ and remote cardiac remodeling. In conclusion, miR-29a and Dnmt3a epigenetically regulate CPC differentiation through Wnt inhibition. Remote effects on cardiac remodeling support paracrine signaling beyond the local injection site, with potential therapeutic interest for cardiac repair.
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Affiliation(s)
- Aurelia De Pauw
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | - Emilie Andre
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | - Belaid Sekkali
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | - Caroline Bouzin
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | - Hrag Esfahani
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | - Nicolas Barbier
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | - Axelle Loriot
- Group of Genetics and Epigenetics, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Charles De Smet
- Group of Genetics and Epigenetics, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Laetitia Vanhoutte
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and.,Division of Paediatric Cardiology and
| | | | - Bernhard Gerber
- Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique and Cliniques Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Vittoria di Mauro
- Humanitas Clinical and Research Center, National Research Council, Institute of Genetic and Biomedical Research, Milan, Italy
| | - Daniele Catalucci
- Humanitas Clinical and Research Center, National Research Council, Institute of Genetic and Biomedical Research, Milan, Italy
| | - Olivier Feron
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
| | | | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique, and Department of Medicine, Cliniques Saint-Luc, and
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23
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Jucker T, Caspersen J, Chave J, Antin C, Barbier N, Bongers F, Dalponte M, van Ewijk KY, Forrester DI, Haeni M, Higgins SI, Holdaway RJ, Iida Y, Lorimer C, Marshall PL, Momo S, Moncrieff GR, Ploton P, Poorter L, Rahman KA, Schlund M, Sonké B, Sterck FJ, Trugman AT, Usoltsev VA, Vanderwel MC, Waldner P, Wedeux BMM, Wirth C, Wöll H, Woods M, Xiang W, Zimmermann NE, Coomes DA. Allometric equations for integrating remote sensing imagery into forest monitoring programmes. Glob Chang Biol 2017; 23:177-190. [PMID: 27381364 PMCID: PMC6849852 DOI: 10.1111/gcb.13388] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 05/10/2016] [Accepted: 05/30/2016] [Indexed: 05/05/2023]
Abstract
Remote sensing is revolutionizing the way we study forests, and recent technological advances mean we are now able - for the first time - to identify and measure the crown dimensions of individual trees from airborne imagery. Yet to make full use of these data for quantifying forest carbon stocks and dynamics, a new generation of allometric tools which have tree height and crown size at their centre are needed. Here, we compile a global database of 108753 trees for which stem diameter, height and crown diameter have all been measured, including 2395 trees harvested to measure aboveground biomass. Using this database, we develop general allometric models for estimating both the diameter and aboveground biomass of trees from attributes which can be remotely sensed - specifically height and crown diameter. We show that tree height and crown diameter jointly quantify the aboveground biomass of individual trees and find that a single equation predicts stem diameter from these two variables across the world's forests. These new allometric models provide an intuitive way of integrating remote sensing imagery into large-scale forest monitoring programmes and will be of key importance for parameterizing the next generation of dynamic vegetation models.
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Affiliation(s)
- Tommaso Jucker
- Forest Ecology and Conservation GroupDepartment of Plant SciencesUniversity of CambridgeCambridgeUK
| | - John Caspersen
- Faculty of ForestryUniversity of Toronto33 Willcocks StreetTorontoONM5S 3B3Canada
- Swiss Federal Research Institute WSLZürcherstrasse 111Birmensdorf8903Switzerland
| | - Jérôme Chave
- Laboratoire Evolution et Diversité BiologiqueUMR5174, CNRS/Université Paul Sabatier Bâtiment 4R1118 route de NarbonneToulouseF‐31062France
| | - Cécile Antin
- Institut de Recherche pour le DéveloppementUMR AMAPMontpellierFrance
- Institut Français de PondichéryUMIFRE CNRS‐MAE 21PuducherryIndia
| | - Nicolas Barbier
- Institut de Recherche pour le DéveloppementUMR AMAPMontpellierFrance
| | - Frans Bongers
- Forest Ecology and Forest Management GroupWageningen UniversityPO Box 47AA Wageningen6700the Netherlands
| | - Michele Dalponte
- Department of Sustainable Agro‐ecosystems and BioresourcesResearch and Innovation CentreFondazione E. Mach, Via E. Mach 1San Michele all'Adige38010Italy
| | | | - David I. Forrester
- Chair of SilvicultureFaculty of Environment and Natural ResourcesFreiburg UniversityTennenbacherstr. 4Freiburg79108Germany
| | - Matthias Haeni
- Swiss Federal Research Institute WSLZürcherstrasse 111Birmensdorf8903Switzerland
| | - Steven I. Higgins
- Department of BotanyUniversity of OtagoPO Box 56Dunedin9016New Zealand
| | | | - Yoshiko Iida
- Kyushu Research CenterForestry and Forest Products Research InstituteKumamoto860‐0862Japan
| | - Craig Lorimer
- Department of Forest and Wildlife EcologyUniversity of Wisconsin‐MadisonMadisonWI53706USA
| | - Peter L. Marshall
- Faculty of ForestryUniversity of British Columbia2424 Main MallVancouverBCV6T 1Z4Canada
| | - Stéphane Momo
- Institut de Recherche pour le DéveloppementUMR AMAPMontpellierFrance
- Laboratoire de Botanique systématique et d'EcologieDépartement des Sciences BiologiquesEcole Normale SupérieureUniversité de Yaoundé IYaoundéCameroon
| | - Glenn R. Moncrieff
- Fynbos NodeSouth African Environmental Observation Network (SAEON)Centre for Biodiversity ConservationKirstenbosch GardensPrivate Bag X7, Rhodes Drive, ClaremontCape Town7735South Africa
| | - Pierre Ploton
- Institut de Recherche pour le DéveloppementUMR AMAPMontpellierFrance
| | - Lourens Poorter
- Forest Ecology and Forest Management GroupWageningen UniversityPO Box 47AA Wageningen6700the Netherlands
| | | | - Michael Schlund
- Department of Earth ObservationFriedrich‐Schiller UniversityLoebdergraben 32Jena07743Germany
| | - Bonaventure Sonké
- Laboratoire de Botanique systématique et d'EcologieDépartement des Sciences BiologiquesEcole Normale SupérieureUniversité de Yaoundé IYaoundéCameroon
| | - Frank J. Sterck
- Forest Ecology and Forest Management GroupWageningen UniversityPO Box 47AA Wageningen6700the Netherlands
| | - Anna T. Trugman
- Program in Atmospheric and Oceanic SciencesPrinceton UniversityPrincetonNJ08544USA
| | - Vladimir A. Usoltsev
- Botanical Garden of the Russian Academy of Sciences (Ural branch)Russia and Ural State Forest Engineering UniversityYekaterinburg620100Russia
| | - Mark C. Vanderwel
- Department of BiologyUniversity of Regina3737 Wascana PkwyReginaSKS4S 0A2Canada
| | - Peter Waldner
- Swiss Federal Research Institute WSLZürcherstrasse 111Birmensdorf8903Switzerland
| | - Beatrice M. M. Wedeux
- Forest Ecology and Conservation GroupDepartment of Plant SciencesUniversity of CambridgeCambridgeUK
| | - Christian Wirth
- Systematic Botany and Functional BiodiversityInstitute of BiologyUniversity of LeipzigLeipzigGermany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
| | - Hannsjörg Wöll
- Conservation and Natural Resources ManagementSommersbergseestr. 291Bad AusseeA‐8990Austria
| | - Murray Woods
- Ontario Ministry of Natural ResourcesNorth Bay ONP1A 4L7Canada
| | - Wenhua Xiang
- Faculty of Life Science and TechnologyCentral South University of Forestry and TechnologyChangsha410004China
| | | | - David A. Coomes
- Forest Ecology and Conservation GroupDepartment of Plant SciencesUniversity of CambridgeCambridgeUK
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24
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Hardy-Bessard AC, Brocard F, Leheurteur M, Melis A, Dauba J, Lortholary A, You B, Guardiola E, Grenier J, Martin-Babau J, Meunier J, Follana P, Savoye AM, Mercier-Blas A, Marti A, Despax R, Barbier N, Gane N, Ardisson P, Segura-Djezzar C. Phase II trial evaluating the combination of eribulin (E)+ bevacizumab (BEV) as first line chemotherapy in patients with metastatic Her2-negative breast cancer (MBC): a GINECO group study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw365.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Cador C, Hervé S, Andraud M, Gorin S, Paboeuf F, Barbier N, Quéguiner S, Deblanc C, Simon G, Rose N. Maternally-derived antibodies do not prevent transmission of swine influenza A virus between pigs. Vet Res 2016; 47:86. [PMID: 27530456 PMCID: PMC4988049 DOI: 10.1186/s13567-016-0365-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 07/20/2016] [Indexed: 12/22/2022] Open
Abstract
A transmission experiment involving 5-week-old specific-pathogen-free (SPF) piglets, with (MDA(+)) or without maternally-derived antibodies (MDA(-)), was carried out to evaluate the impact of passive immunity on the transmission of a swine influenza A virus (swIAV). In each group (MDA(+)/MDA(-)), 2 seeders were placed with 4 piglets in direct contact and 5 in indirect contact (3 replicates per group). Serological kinetics (ELISA) and individual viral shedding (RT-PCR) were monitored for 28 days after infection. MDA waning was estimated using a nonlinear mixed-effects model and survival analysis. Differential transmission rates were estimated depending on the piglets' initial serological status and contact structure (direct contact with pen-mates or indirect airborne contact). The time to MDA waning was 71.3 [52.8-92.1] days on average. The airborne transmission rate was 1.41 [0.64-2.63] per day. The compared shedding pattern between groups showed that MDA(+) piglets had mainly a reduced susceptibility to infection compared to MDA(-) piglets. The resulting reproduction number estimated in MDA(+) piglets (5.8 [1.4-18.9]), although 3 times lower than in MDA(-) piglets (14.8 [6.4-27.1]), was significantly higher than 1. Such an efficient and extended spread of swIAV at the population scale in the presence of MDAs could contribute to swIAV persistence on farms, given the fact that the period when transmission is expected to be impacted by the presence of MDAs can last up to 10 weeks.
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Affiliation(s)
- Charlie Cador
- Swine Epidemiology and Welfare Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France. .,Université Bretagne Loire, Rennes, France.
| | - Séverine Hervé
- Swine Virology Immunology Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Mathieu Andraud
- Swine Epidemiology and Welfare Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Stéphane Gorin
- Swine Virology Immunology Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Frédéric Paboeuf
- SPF Pig Production and Experimental Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Nicolas Barbier
- Swine Virology Immunology Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Stéphane Quéguiner
- Swine Virology Immunology Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Céline Deblanc
- Swine Virology Immunology Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Gaëlle Simon
- Swine Virology Immunology Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
| | - Nicolas Rose
- Swine Epidemiology and Welfare Research Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), BP 53, 22440, Ploufragan, France.,Université Bretagne Loire, Rennes, France
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26
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Carrie C, Hasbini A, de Laroche G, Richaud P, Guerif S, Latorzeff I, Supiot S, Bosset M, Lagrange JL, Beckendorf V, Lesaunier F, Dubray B, Wagner JP, N'Guyen TD, Suchaud JP, Créhange G, Barbier N, Habibian M, Ferlay C, Fourneret P, Ruffion A, Dussart S. Salvage radiotherapy with or without short-term hormone therapy for rising prostate-specific antigen concentration after radical prostatectomy (GETUG-AFU 16): a randomised, multicentre, open-label phase 3 trial. Lancet Oncol 2016; 17:747-756. [PMID: 27160475 DOI: 10.1016/s1470-2045(16)00111-x] [Citation(s) in RCA: 269] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/10/2016] [Accepted: 02/11/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND How best to treat rising prostate-specific antigen (PSA) concentration after radical prostatectomy is an urgent clinical question. Salvage radiotherapy delays the need for more aggressive treatment such as long-term androgen suppression, but fewer than half of patients benefit from it. We aimed to establish the effect of adding short-term androgen suppression at the time of salvage radiotherapy on biochemical outcome and overall survival in men with rising PSA following radical prostatectomy. METHODS This open-label, multicentre, phase 3, randomised controlled trial, was done in 43 French study centres. We enrolled men (aged ≥18 years) who had received previous treatment for a histologically confirmed adenocarcinoma of the prostate (but no previous androgen deprivation therapy or pelvic radiotherapy), and who had stage pT2, pT3, or pT4a (bladder neck involvement only) in patients who had rising PSA of 0·2 to less than 2·0 μg/L following radical prostatectomy, without evidence of clinical disease. Patients were randomly assigned (1:1) centrally via an interactive web response system to standard salvage radiotherapy (three-dimensional [3D] conformal radiotherapy or intensity modulated radiotherapy, of 66 Gy in 33 fractions 5 days a week for 7 weeks) or radiotherapy plus short-term androgen suppression using 10·8 mg goserelin by subcutaneous injection on the first day of irradiation and 3 months later. Randomisation was stratified using a permuted block method according to investigational site, radiotherapy modality, and prognosis. The primary endpoint was progression-free survival, analysed in the intention-to-treat population. This trial is registered with ClinicalTrials.gov, number NCT00423475. FINDINGS Between Oct 19, 2006, and March 30, 2010, 743 patients were randomly assigned, 374 to radiotherapy alone and 369 to radiotherapy plus goserelin. Patients assigned to radiotherapy plus goserelin were significantly more likely than patients in the radiotherapy alone group to be free of biochemical progression or clinical progression at 5 years (80% [95% CI 75-84] vs 62% [57-67]; hazard ratio [HR] 0·50, 95% CI 0·38-0·66; p<0·0001). No additional late adverse events occurred in patients receiving short-term androgen suppression compared with those who received radiotherapy alone. The most frequently occuring acute adverse events related to goserelin were hot flushes, sweating, or both (30 [8%] of 366 patients had a grade 2 or worse event; 30 patients [8%] had hot flushes and five patients [1%] had sweating in the radiotherapy plus goserelin group vs none of 372 patients in the radiotherapy alone group). Three (8%) of 366 patients had grade 3 or worse hot flushes and one patient had grade 3 or worse sweating in the radiotherapy plus goserelin group versus none of 372 patients in the radiotherapy alone group. The most common late adverse events of grade 3 or worse were genitourinary events (29 [8%] in the radiotherapy alone group vs 26 [7%] in the radiotherapy plus goserelin group) and sexual disorders (20 [5%] vs 30 [8%]). No treatment-related deaths occurred. INTERPRETATION Adding short-term androgen suppression to salvage radiotherapy benefits men who have had radical prostatectomy and whose PSA rises after a postsurgical period when it is undetectable. Radiotherapy combined with short-term androgen suppression could be considered as a reasonable option in this population. FUNDING French Ministry of Health, AstraZeneca, and La Ligue Contre le Cancer.
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Affiliation(s)
| | - Ali Hasbini
- Department of Radiotherapy, Clinique Armoricaine, Saint-Brieuc, France
| | - Guy de Laroche
- Department of Radiotherapy, Institut de Cancérologie de la Loire, Saint Priest en Jarez, France
| | - Pierre Richaud
- Department of Radiotherapy, Institut Bergonié, Bordeaux, France
| | - Stéphane Guerif
- Department of Radiotherapy, Centre Hospitalier Universitaire, Poitiers, France
| | - Igor Latorzeff
- Department of Radiotherapy, Groupe ONCORAD Garonne and Clinique Pasteur, Toulouse, France
| | - Stéphane Supiot
- Department of Radiotherapy, Institut de Cancérologie de l'Ouest René Gauducheau, Saint Herblain, University of Nantes, Nantes, France; INSERM UMR892, Nantes, France
| | - Mathieu Bosset
- Department of Radiotherapy, Centre Marie Curie, Valence, France
| | | | - Véronique Beckendorf
- Department of Radiotherapy, Institut de Cancérologie de Lorraine Alexis Vautrin, Nancy, France
| | | | - Bernard Dubray
- Radiation Oncology and Medical Physics, QuantIF LITIS (EA4108), Centre Henri Becquerel, Rouen, France; Rouen University Hospital, University of Rouen, Rouen, France
| | | | - Tan Dat N'Guyen
- Department of Radiotherapy, Institut Jean Godinot, Reims, France
| | | | - Gilles Créhange
- Department of Radiotherapy, Centre George-François Leclerc, Dijon, France
| | - Nicolas Barbier
- Department of Radiotherapy, Centre Catalan d'oncologie, Perpignan, France
| | | | - Céline Ferlay
- Direction of Clinical Research and Innovation, Centre Léon Bérard, Lyon, France
| | - Philippe Fourneret
- Department of Radiotherapy, Centre Hospitalier Métropole Savoie, Chambéry, France
| | - Alain Ruffion
- Department of Urology, Hôpital Lyon Sud, Pierre Bénite, Lyon, France; Cancer Research Centre of Lyon, INSERM 1052 CNRS 5286, Lyon 1 University, Lyon, France
| | - Sophie Dussart
- Direction of Clinical Research and Innovation, Centre Léon Bérard, Lyon, France
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27
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Carrie C, Hasbini A, De Laroche G, Habibian M, Richaud P, Guérif S, Latorzeff I, Supiot S, Bosset M, Lagrange JL, Beckendorf V, Lesaunier F, Dubray B, Wagner JP, N'Guyen TD, Suchaud JP, Crehange G, Barbier N, Ruffion A, Dussart S. Interest of short hormonotherapy (HT) associated with radiotherapy (RT) as salvage treatment for biological relapse (BR) after radical prostatectomy (RP): Results of the GETUG-AFU 16 phase III randomized trial—NCT00423475. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.5006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Christian Carrie
- Department of Radiation Oncology, Centre Léon Bérard, Lyon, France
| | | | - Guy De Laroche
- Institut de Cancerologie de La Loire, St Priest En Jarez, France
| | | | | | | | | | - Stephane Supiot
- Institut de Cancérologie de l'Ouest - René Gauducheau, Nantes, France
| | | | | | | | | | | | | | | | | | | | | | - Alain Ruffion
- Department of Urology, Centre Hospitalier Lyon Sud, Pierre Benite, France
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28
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Bastin JF, Barbier N, Couteron P, Adams B, Shapiro A, Bogaert J, De Cannière C. Aboveground biomass mapping of African forest mosaics using canopy texture analysis: toward a regional approach. Ecol Appl 2014; 24:1984-2001. [PMID: 29185667 DOI: 10.1890/13-1574.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the context of the reduction of greenhouse gas emissions caused by deforestation and forest degradation (the REDD+ program), optical very high resolution (VHR) satellite images provide an opportunity to characterize forest canopy structure and to quantify aboveground biomass (AGB) at less expense than methods based on airborne remote sensing data. Among the methods for processing these VHR images, Fourier textural ordination (FOTO) presents a good method to detect forest canopy structural heterogeneity and therefore to predict AGB variations. Notably, the method does not saturate at intermediate AGB values as do pixelwise processing of available space borne optical and radar signals. However, a regional-scale application requires overcoming two difficulties: (1) instrumental effects due to variations in sun–scene–sensor geometry or sensor-specific responses that preclude the use of wide arrays of images acquired under heterogeneous conditions and (2) forest structural diversity including monodominant or open canopy forests, which are of particular importance in Central Africa. In this study, we demonstrate the feasibility of a rigorous regional study of canopy texture by harmonizing FOTO indices of images acquired from two different sensors (Geoeye-1 and QuickBird-2) and different sun–scene–sensor geometries and by calibrating a piecewise biomass inversion model using 26 inventory plots (1 ha) sampled across very heterogeneous forest types. A good agreement was found between observed and predicted AGB (residual standard error [RSE] = 15%; R2 = 0.85; P < 0.001) across a wide range of AGB levels from 26 Mg/ha to 460 Mg/ha, and was confirmed by cross validation. A high-resolution biomass map (100-m pixels) was produced for a 400-km2 area, and predictions obtained from both imagery sources were consistent with each other (r = 0.86; slope = 1.03; intercept = 12.01 Mg/ha). These results highlight the horizontal structure of forest canopy as a powerful descriptor of the entire forest stand structure and heterogeneity. In particular, we show that quantitative metrics resulting from such textural analysis offer new opportunities to characterize the spatial and temporal variation of the structure of dense forests and may complement the toolbox used by tropical forest ecologists, managers or REDD+ national monitoring, reporting and verification bodies.
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29
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Rose N, Hervé S, Eveno E, Barbier N, Eono F, Dorenlor V, Andraud M, Camsusou C, Madec F, Simon G. Dynamics of influenza A virus infections in permanently infected pig farms: evidence of recurrent infections, circulation of several swine influenza viruses and reassortment events. Vet Res 2013; 44:72. [PMID: 24007505 PMCID: PMC3846378 DOI: 10.1186/1297-9716-44-72] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 08/27/2013] [Indexed: 11/29/2022] Open
Abstract
Concomitant infections by different influenza A virus subtypes within pig farms increase the risk of new reassortant virus emergence. The aims of this study were to characterize the epidemiology of recurrent swine influenza virus infections and identify their main determinants. A follow-up study was carried out in 3 selected farms known to be affected by repeated influenza infections. Three batches of pigs were followed within each farm from birth to slaughter through a representative sample of 40 piglets per batch. Piglets were monitored individually on a monthly basis for serology and clinical parameters. When a flu outbreak occurred, daily virological and clinical investigations were carried out for two weeks. Influenza outbreaks, confirmed by influenza A virus detection, were reported at least once in each batch. These outbreaks occurred at a constant age within farms and were correlated with an increased frequency of sneezing and coughing fits. H1N1 and H1N2 viruses from European enzootic subtypes and reassortants between viruses from these lineages were consecutively and sometimes simultaneously identified depending on the batch, suggesting virus co-circulations at the farm, batch and sometimes individual levels. The estimated reproduction ratio R of influenza outbreaks ranged between 2.5 [1.9-2.9] and 6.9 [4.1-10.5] according to the age at infection-time and serological status of infected piglets. Duration of shedding was influenced by the age at infection time, the serological status of the dam and mingling practices. An impaired humoral response was identified in piglets infected at a time when they still presented maternally-derived antibodies.
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Affiliation(s)
- Nicolas Rose
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Séverine Hervé
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Virologie Immunologie Porcines, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Eric Eveno
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Nicolas Barbier
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Virologie Immunologie Porcines, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Florent Eono
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Virginie Dorenlor
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Mathieu Andraud
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Claire Camsusou
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - François Madec
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Epidémiologie et Bien-Être du Porc, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
| | - Gaëlle Simon
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Virologie Immunologie Porcines, BP 53, 22440 Ploufragan, France
- Université Européenne de Bretagne, Rennes, France
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30
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Cardinale E, Pascalis H, Temmam S, Hervé S, Saulnier A, Turpin M, Barbier N, Hoarau J, Quéguiner S, Gorin S, Foray C, Roger M, Porphyre V, André P, Thomas T, de Lamballerie X, Dellagi K, Simon G. Influenza A(H1N1)pdm09 virus in pigs, Réunion Island. Emerg Infect Dis 2013; 18:1665-8. [PMID: 23017204 PMCID: PMC3471629 DOI: 10.3201/eid1810.120398] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
During 2009, pandemic influenza A(H1N1)pdm09 virus affected humans on Réunion Island. Since then, the virus has sustained circulation among local swine herds, raising concerns about the potential for genetic evolution of the virus and possible retransmission back to humans of variants with increased virulence. Continuous surveillance of A(H1N1)pdm09 infection in pigs is recommended.
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Affiliation(s)
- Eric Cardinale
- Le Centre de Recherche et de Veille sur les Maladies Emergentes dans l’Océan Indien, Sainte-Clotilde, Ile de la Réunion, France.
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Barbier N. book review: Macro‐ecology of the world’s savannas. Frontiers of Biogeography 2012. [DOI: 10.21425/f5fbg12389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Barbier N. book review: Macro‐ecology of the world’s savannas. Frontiers of Biogeography 2012. [DOI: 10.21425/f53112389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Ploton P, Pélissier R, Proisy C, Flavenot T, Barbier N, Rai SN, Couteron P. Assessing aboveground tropical forest biomass using Google Earth canopy images. Ecol Appl 2012; 22:993-1003. [PMID: 22645827 DOI: 10.1890/11-1606.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Reducing Emissions from Deforestation and Forest Degradation (REDD) in efforts to combat climate change requires participating countries to periodically assess their forest resources on a national scale. Such a process is particularly challenging in the tropics because of technical difficulties related to large aboveground forest biomass stocks, restricted availability of affordable, appropriate remote-sensing images, and a lack of accurate forest inventory data. In this paper, we apply the Fourier-based FOTO method of canopy texture analysis to Google Earth's very-high-resolution images of the wet evergreen forests in the Western Ghats of India in order to (1) assess the predictive power of the method on aboveground biomass of tropical forests, (2) test the merits of free Google Earth images relative to their native commercial IKONOS counterparts and (3) highlight further research needs for affordable, accurate regional aboveground biomass estimations. We used the FOTO method to ordinate Fourier spectra of 1436 square canopy images (125 x 125 m) with respect to a canopy grain texture gradient (i.e., a combination of size distribution and spatial pattern of tree crowns), benchmarked against virtual canopy scenes simulated from a set of known forest structure parameters and a 3-D light interception model. We then used 15 1-ha ground plots to demonstrate that both texture gradients provided by Google Earth and IKONOS images strongly correlated with field-observed stand structure parameters such as the density of large trees, total basal area, and aboveground biomass estimated from a regional allometric model. Our results highlight the great potential of the FOTO method applied to Google Earth data for biomass retrieval because the texture-biomass relationship is only subject to 15% relative error, on average, and does not show obvious saturation trends at large biomass values. We also provide the first reliable map of tropical forest aboveground biomass predicted from free Google Earth images.
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Affiliation(s)
- Pierre Ploton
- Département d'Ecologie, Institut Français de Pondichéry, UMIFRE MAEE-CNRS 21, Puducherry 605001, India
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Deblauwe V, Couteron P, Bogaert J, Barbier N. Determinants and dynamics of banded vegetation pattern migration in arid climates. ECOL MONOGR 2012. [DOI: 10.1890/11-0362.1] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Wassenberg J, Nutten S, Audran R, Barbier N, Aubert V, Moulin J, Mercenier A, Spertini F. Effect of Lactobacillus paracasei ST11 on a nasal provocation test with grass pollen in allergic rhinitis. Clin Exp Allergy 2011; 41:565-73. [PMID: 21395878 DOI: 10.1111/j.1365-2222.2011.03695.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Probiotics have been associated with prevention and improvement of symptoms in atopic diseases such as atopic dermatitis. However, few studies exist that document their efficacy for upper airways allergies such as allergic rhinitis. OBJECTIVE To investigate the effect of short-term oral administration of Lactobacillus paracasei ST11 on a nasal provocation test (NPT) with grass pollen. METHODS Thirty-one adult volunteers with allergic rhinitis were enrolled in a randomized, double-blind, placebo-controlled study, based on two 4-week cross-over periods of product consumption (ST11-fermented milk vs. placebo), separated by a wash-out period of 6-8 weeks. Objective and subjective clinical parameters of NPT as well as systemic and nasal immunological parameters were compared between the two treatment periods (registration number: NCT 011 50 253). RESULTS Subjects that received ST11-fermented milk had lower nasal congestion than subjects under placebo (visual analogical scale; P<0.05). Nasal pruritus followed the same trend. However, no significant change in combined nasal reaction threshold was observed between the two periods. IL-5 secretion by peripheral blood mononuclear cells and serum allergen-specific IgG4 were significantly lower in ST11-fermented milk group compared to placebo group. IL-8 and IL-10 secretion followed the same trend. CONCLUSION AND CLINICAL RELEVANCE Short-term treatment with ST11-fermented milk before NPT significantly improved a clinical marker of NPT (subjective nasal congestion) and down-regulated systemic immune markers (IL-5 from peripheral blood mononuclear cells and serum IgG4). These data strongly suggest that probiotics may down modulate key parameters of allergic rhinitis and warrant future evaluation in seasonal trials.
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Affiliation(s)
- J Wassenberg
- Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland Nestle Research Centre, Lausanne, Switzerland
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Anderson LO, Malhi Y, Aragão LEOC, Ladle R, Arai E, Barbier N, Phillips O. Remote sensing detection of droughts in Amazonian forest canopies. New Phytol 2010; 187:733-750. [PMID: 20659255 DOI: 10.1111/j.1469-8137.2010.03355.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
*Remote sensing data are a key tool to assess large forested areas, where limitations such as accessibility and lack of field measurements are prevalent. Here, we have analysed datasets from moderate resolution imaging spectroradiometer (MODIS) satellite measurements and field data to assess the impacts of the 2005 drought in Amazonia. *We combined vegetation indices (VI) and climatological variables to evaluate the spatiotemporal patterns associated with the 2005 drought, and explore the relationships between remotely-sensed indices and forest inventory data on tree mortality. *There were differences in results based on c4 and c5 MODIS products. C5 VI showed no spatial relationship with rainfall or aerosol optical depth; however, distinct regions responded significantly to the increased radiation in 2005. The increase in the Enhanced VI (EVI) during 2005 showed a significant positive relationship (P < 0.07) with the increase of tree mortality. By contrast, the normalized difference water index (NDWI) exhibited a significant negative relationship (P < 0.09) with tree mortality. *Previous studies have suggested that the increase in EVI during the 2005 drought was associated with a positive response of forest photosynthesis to changes in the radiation income. We discuss the evidence that this increase could be related to structural changes in the canopy.
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Affiliation(s)
- Liana O Anderson
- Environmental Change Institute, School of Geography and Environment, Oxford University, Oxford, UK.
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Butler AJ, Barbier N, Cermák J, Koller J, Thornily C, McEvoy C, Nicoll B, Perks MP, Grace J, Meir P. Estimates and relationships between aboveground and belowground resource exchange surface areas in a Sitka spruce managed forest. Tree Physiol 2010; 30:705-714. [PMID: 20404352 DOI: 10.1093/treephys/tpq022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Our knowledge of the nature of belowground competition for moisture and nutrients is limited. In this study, we used an earth impedance method to determine the root absorbing area of Sitka spruce (Picea sitchensis (Bong.) Carr.) trees, making measurements in stands of differing density (2-, 4- and 6-m inter-tree spacing). We compared absorbing root area index (RAI(absorbing); based on the impedance measure) with fine root area index (RAI(fine); based on estimates of total surface area of fine roots) and related these results to investment in conductive roots. Root absorbing area was a near-linear function of tree stem diameter at 1.3 m height. At the stand level, RAI(absorbing), which is analogous to and scaled with transpiring leaf area index (maximum stomatal pore area per unit ground area; LAI(transpiring)), increased proportionally with basal area across the three stands. In contrast, RAI(fine) was inversely propotional to basal area. The ratio of RAI(absorbing) to LAI(transpiring) ranged from 7.7 to 17.1, giving an estimate of the relative aboveground versus belowground resource exchange areas. RAI(absorbing) provides a way of characterizing ecosystem functioning as a physiologically meaningful index of belowground absorbing area.
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Affiliation(s)
- A J Butler
- School of Geosciences, University of Edinburgh, Drummond Street, Edinburgh EH89XP, UK.
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Lefever R, Barbier N, Couteron P, Lejeune O. Deeply gapped vegetation patterns: on crown/root allometry, criticality and desertification. J Theor Biol 2009; 261:194-209. [PMID: 19651145 DOI: 10.1016/j.jtbi.2009.07.030] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 07/14/2009] [Accepted: 07/23/2009] [Indexed: 10/20/2022]
Abstract
The dynamics of vegetation is formulated in terms of the allometric and structural properties of plants. Within the framework of a general and yet parsimonious approach, we focus on the relationship between the morphology of individual plants and the spatial organization of vegetation populations. So far, in theoretical as well as in field studies, this relationship has received only scant attention. The results reported remedy to this shortcoming. They highlight the importance of the crown/root ratio and demonstrate that the allometric relationship between this ratio and plant development plays an essential part in all matters regarding ecosystems stability under conditions of limited soil (water) resources. This allometry determines the coordinates in parameter space of a critical point that controls the conditions in which the emergence of self-organized biomass distributions is possible. We have quantified this relationship in terms of parameters that are accessible by measurement of individual plant characteristics. It is further demonstrated that, close to criticality, the dynamics of plant populations is given by a variational Swift-Hohenberg equation. The evolution of vegetation in response to increasing aridity, the conditions of gapped pattern formation and the conditions under which desertification takes place are investigated more specifically. It is shown that desertification may occur either as a local desertification process that does not affect pattern morphology in the course of its unfolding or as a gap coarsening process after the emergence of a transitory, deeply gapped pattern regime. Our results amend the commonly held interpretation associating vegetation patterns with a Turing instability. They provide a more unified understanding of vegetation self-organization within the broad context of matter order-disorder transitions.
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Affiliation(s)
- René Lefever
- Service de Chimie Physique et Biologie Théorique, Faculté des Sciences-C.P. 231, Université Libre de Bruxelles, Bld du Triomphe, B-1050 Bruxelles, Belgium.
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Boudousquié C, Pellaton C, Barbier N, Spertini F. CD4+CD25+ T cell depletion impairs tolerance induction in a murine model of asthma. Clin Exp Allergy 2009; 39:1415-26. [PMID: 19624523 DOI: 10.1111/j.1365-2222.2009.03314.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Regulatory T cells (Tregs) are key players in controlling the development of airway inflammation. However, their role in the mechanisms leading to tolerance in established allergic asthma is unclear. OBJECTIVE To examine the role of Tregs in tolerance induction in a murine model of asthma. METHODS Ovalbumin (OVA) sensitized asthmatic mice were depleted or not of CD25(+) T cells by anti-CD25 PC61 monoclonal antibody (mAb) before intranasal treatment (INT) with OVA, then challenged with OVA aerosol. To further evaluate the respective regulatory activity of CD4(+)CD25(+) and CD4(+)CD25(-) T cells, both T cell subsets were transferred from tolerized or non-tolerized animals to asthmatic recipients. Bronchoalveolar lavage fluid (BALF), T cell proliferation and cytokine secretion were examined. RESULTS Intranasal treatment with OVA led to increased levels of IL-10, TGF-beta and IL-17 in lung homogenates, inhibition of eosinophil recruitment into the BALF and antigen specific T cell hyporesponsiveness. CD4(+)CD25(+)Foxp3(+) T cells were markedly upregulated in lungs and suppressed in vitro and in vivo OVA-specific T cell responses. Depletion of CD25(+) cells before OVA INT severely hampered tolerance induction as indicated by a strong recruitment of eosinophils into BALF and a vigorous T cell response to OVA upon challenge. However, the transfer of CD4(+)CD25(-) T cells not only suppressed antigen specific T cell responsiveness but also significantly reduced eosinophil recruitment as opposed to CD4(+)CD25(+) T cells. As compared with control mice, a significantly higher proportion of CD4(+)CD25(-) T cells from OVA treated mice expressed mTGF-beta. CONCLUSION Both CD4(+)CD25(+) and CD4(+)CD25(-) T cells appear to be essential to tolerance induction. The relationship between both subsets and the mechanisms of their regulatory activity will have to be further analyzed.
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Affiliation(s)
- C Boudousquié
- Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
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Luger TA, Lahfa M, Fölster-Holst R, Gulliver WP, Allen R, Molloy S, Barbier N, Paul C, Bos JD. Long‐term safety and tolerability of pimecrolimus cream 1% and topical corticosteroids in adults with moderate to severe atopic dermatitis. J DERMATOL TREAT 2009; 15:169-78. [PMID: 15204150 DOI: 10.1080/09546630410033781] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE This randomized, double-blind, multi-centre study compared the long-term safety and tolerability of pimecrolimus cream 1% and topical corticosteroids (TCS) in 658 adults with moderate-severe atopic dermatitis (AD). METHODS Patients applied either pimecrolimus or TCS (i.e. 0.1% triamcinolone acetonide cream and/or 1% hydrocortisone acetate cream) twice daily to all affected areas until complete clearance or for up to 1 year. The study was approved by the institutional review board or ethics committee at each centre. RESULTS A majority of patients treated with either pimecrolimus or TCS used the drug on a continuous basis over 1 year. In patients who had >30% of the body surface involved by AD, the incidence rate of all skin infections was significantly lower in the pimecrolimus group than in the TCS group (95% CI of the treatment difference: -25.3% to -3.4%). The most frequent application site reaction was burning (25.9% of patients on pimecrolimus and 10.9% on TCS), which was transient and mild-moderate in most cases. Three TCS-treated patients reported skin striae. There were no treatment-related serious or clinically significant systemic adverse events. Efficacy was better in patients on continuous TCS therapy, although patients completing the study were similarly well-controlled in both groups. About 42% of the pimecrolimus-treated patients were maintained for 1 year without TCS. CONCLUSION Pimecrolimus demonstrated a favourable safety profile when used to treat adult patients with moderate-severe AD for up to 1 year. A significant proportion of patients could be maintained without TCS for a year.
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Affiliation(s)
- T A Luger
- Universitätsklinikum Münster, Hautklinik, Muenster Germany.
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Barima YSS, Barbier N, Bamba I, Traoré D, Lejoly J, Bogaert J. Dynamique paysagère en milieu de transition forêt-savane ivoirienne. ACTA ACUST UNITED AC 2009. [DOI: 10.19182/bft2009.299.a20419] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
La dynamique temporelle des forêts d'une zone de transition forêt-savane, située dans le département de Tanda, à l'est de la Côte d'Ivoire, a été déterminée à partir de l'analyse diachronique de deux images satellitaires de type Landsat TM 1986 et Landsat ETM+ 2000, et de missions de vérification sur le terrain. Les résultats indiquent que les surfaces forestières en 2000 couvraient 29 % de la zone d'étude au lieu de 73 % en 1986. Cette régression forestière a été compensée par une augmentation des zones occupées par les savanes. Les forêts denses sont les plus affectées par cette perte d'habitat, leur superficie ayant diminué de 83 % pendant la période d'étude. La dynamique spatiale du paysage, caractérisée par des indices structuraux, a montré un processus de création de taches de savanes par opposition à la suppression de celles des formations boisées. D'une façon générale, la région d'étude a subi une transformation importante liée essentiellement aux activités agricoles et à la pression démographique. (Résumé d'auteur)
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Barbier N, Couteron P, Lefever R, Deblauwe V, Lejeune O. Spatial decoupling of facilitation and competition at the origin of gapped vegetation patterns. Ecology 2008; 89:1521-31. [PMID: 18589517 DOI: 10.1890/07-0365.1] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spatially periodic vegetation patterns, forming gaps, bands, labyrinths, or spots, are characteristic of arid and semiarid landscapes. Self-organization models can explain this variety of structures within a unified conceptual framework. All these models are based on the interplay of positive and negative effects of plants on soil water, but they can be divided according to whether they assume the interactions to be mediated by water redistribution through runoff/diffusion or by plants' organs. We carried out a multi-proxy approach of the processes operating in a gapped pattern in southwest Niger dominated by a shrub species. Soil moisture within the root layer was monitored in time and space over one month of the rainy season. Soil water recharge displayed no spatial variation with respect to vegetation cover, but the stock half-life under cover was twice that of bare areas. A kernel of facilitation by the aboveground parts of shrubs was parameterized, and soil water half-life was significantly correlated to the cumulated facilitative effects of shrubs. The kernel range was found to be smaller than the canopy radius (81%). This effect of plants on soil water dynamics, probably through a reduction of evaporation by shading, is shown to be a better explanatory variable than potentially relevant soil and topography parameters. The root systems of five individuals of Combretum micranthum G. Don were excavated. Root density data were used as a proxy to parameterize a kernel function of interplant competition. The range of this kernel was larger than the canopy radius (125%). The facilitation-to-competition range ratio, reflecting the above-to-belowground ratio of plant lateral extent, was smaller than 1 (0.64), a result supporting models assuming that patterning may emerge from an adaptation of plant morphology to aridity and shallow soils by means of an extended lateral root system. Moreover, observed soil water gradients had directions opposite to those assumed by alternative mathematical models based on underground water diffusion. This study contributes to the growing awareness that combined facilitative and competitive plant interactions can induce landscape-scale patterns and shape the two-way feedback loops between environment and vegetation.
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Affiliation(s)
- Nicolas Barbier
- Service de Botanique Systématique et Phytosociologie, Université Libre de Bruxelles, Bruxelles, Belgium.
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Aragão LEOC, Malhi Y, Barbier N, Lima A, Shimabukuro Y, Anderson L, Saatchi S. Interactions between rainfall, deforestation and fires during recent years in the Brazilian Amazonia. Philos Trans R Soc Lond B Biol Sci 2008; 363:1779-85. [PMID: 18267907 PMCID: PMC2373892 DOI: 10.1098/rstb.2007.0026] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Understanding the interplay between climate and land-use dynamics is a fundamental concern for assessing the vulnerability of Amazonia to climate change. In this study, we analyse satellite-derived monthly and annual time series of rainfall, fires and deforestation to explicitly quantify the seasonal patterns and relationships between these three variables, with a particular focus on the Amazonian drought of 2005. Our results demonstrate a marked seasonality with one peak per year for all variables analysed, except deforestation. For the annual cycle, we found correlations above 90% with a time lag between variables. Deforestation and fires reach the highest values three and six months, respectively, after the peak of the rainy season. The cumulative number of hot pixels was linearly related to the size of the area deforested annually from 1998 to 2004 (r2=0.84, p=0.004). During the 2005 drought, the number of hot pixels increased 43% in relation to the expected value for a similar deforested area (approx. 19000km2). We demonstrated that anthropogenic forcing, such as land-use change, is decisive in determining the seasonality and annual patterns of fire occurrence. Moreover, droughts can significantly increase the number of fires in the region even with decreased deforestation rates. We may expect that the ongoing deforestation, currently based on slash and burn procedures, and the use of fires for land management in Amazonia will intensify the impact of droughts associated with natural climate variability or human-induced climate change and, therefore, a large area of forest edge will be under increased risk of fires.
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Affiliation(s)
- Luiz Eduardo O C Aragão
- Environmental Change Institute, Oxford University Centre for the Environment, University of Oxford, Oxford OX1 3QY, UK.
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Murrell D, Calvieri S, Ortonne J, Ho V, Weise-Riccardi S, Barbier N, Paul C. A randomized controlled trial of pimecrolimus cream 1% in adolescents and adults with head and neck atopic dermatitis and intolerant of, or dependent on, topical corticosteroids. Br J Dermatol 2007; 157:954-9. [DOI: 10.1111/j.1365-2133.2007.08192.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Azria D, Bibeau F, Barbier N, Zouhair A, Lemanski C, Rouanet P, Ychou M, Senesse P, Ozsahin M, Pèlegrin A, Dubois JB, Thèzenas S. Prognostic impact of epidermal growth factor receptor (EGFR) expression on loco-regional recurrence after preoperative radiotherapy in rectal cancer. BMC Cancer 2005; 5:62. [PMID: 15967033 PMCID: PMC1185521 DOI: 10.1186/1471-2407-5-62] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2004] [Accepted: 06/20/2005] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) represents a major target for current radiosensitizing strategies. We wished to ascertain whether a correlation exists between the expression of EGFR and treatment outcome in a group of patients with rectal adenocarcinoma who had undergone preoperative radiotherapy (RT). METHODS Within a six-year period, 138 patients underwent preoperative radiotherapy and curative surgery for rectal cancer (UICC stages II-III) at our institute. Among them, 77 pretherapeutic tumor biopsies were available for semi-quantitative immunohistochemical investigation evaluating the intensity and the number (extent) of tumor stained cells. Statistical analyses included Cox regression for calculating risk ratios of survival endpoints and logistic regression for determining odds ratios for the development of loco-regional recurrences. RESULTS Median age was 64 years (range: 30-88). Initial staging showed 75% and 25% stage II and III tumors, respectively. RT consisted of 44-Gy pelvic irradiation in 2-Gy fractions using 18-MV photons. In 25 very low-rectal-cancer patients the primary tumor received a boost dose of up to 16 Gy for a sphincter-preservation approach. Concomitant chemotherapy was used in 17% of the cases. All patients underwent complete total mesorectal resection. Positive staining (EGFR+) was observed in 43 patients (56%). Median follow-up was 36 months (range: 6-86). Locoregional recurrence rates were 7 and 20% for EGFR extent inferior and superior to 25%, respectively. The corresponding locoregional recurrence-free survival rate at two years was 94% (95% confidence interval, CI, 92-98%) and 84% (CI 95%, 58-95%), respectively (P = 0.06). Multivariate analyses showed a significant correlation between the rate of loco-regional recurrence and three parameters: EGFR extent superior to 25% (hazard ratio = 7.18, CI 95%, 1.17-46, P = 0.037), rectal resection with microscopic residue (hazard ratio = 6.92, CI 95%, 1.18-40.41, P = 0.032), and a total dose of 44 Gy (hazard ratio = 5.78, CI 95%, 1.04-32.05, P = 0.045). CONCLUSION EGFR expression impacts on loco-regional recurrence. Knowledge of expression of EGFR in rectal cancer could contribute to the identification of patients with an increased risk of recurrences, and to the prediction of prognosis.
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Affiliation(s)
- David Azria
- Department of Radiation Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
- INSERM, EMI 0227, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Frederic Bibeau
- Department of Pathology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Nicolas Barbier
- Department of Radiation Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Abderrahim Zouhair
- Department of Radiation Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
- Department of Radiation Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Claire Lemanski
- Department of Radiation Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Philippe Rouanet
- Department of Surgical Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Marc Ychou
- INSERM, EMI 0227, Val d'Aurelle Cancer Institute, Montpellier, France
- Department of Medical and Digestive Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Pierre Senesse
- Department of Medical and Digestive Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Mahmut Ozsahin
- Department of Radiation Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - André Pèlegrin
- INSERM, EMI 0227, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Jean-Bernard Dubois
- Department of Radiation Oncology, Val d'Aurelle Cancer Institute, Montpellier, France
| | - Simon Thèzenas
- Biostatistics Unit, Val d'Aurelle Cancer Institute, Montpellier, France
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Aillères N, Azria D, Thézenas S, Barbier N, Fenoglietto P, Delard R, Hay MH, Dubois JB. [Pilot study of conformal intensity modulated radiation therapy for localized prostate cancer]. Cancer Radiother 2004; 8:59-69. [PMID: 15063872 DOI: 10.1016/j.canrad.2003.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2003] [Revised: 09/23/2003] [Accepted: 10/31/2003] [Indexed: 11/25/2022]
Abstract
PURPOSE - To report our experience on treatment planning and acute toxicity in 16 patients suffering from clinically localized prostate cancer treated with high-dose intensity-modulated radiation therapy (IMRT). PATIENTS AND METHODS - Between March 2001 and October 2002, 16 patients with clinically localized prostate cancer were treated with IMRT. Treatment planning included an inverse-planning approach, and the desired beam intensity profiles were delivered by dynamic multileaf collimation. All patients received the entire treatment course with IMRT to a prescribed dose of 78 Gy. All IMRT treatment plans were compared with a theoretical conventional three-dimensional conformal radiation therapy (3D-CRT). Acute lower gastro-intestinal (GI) and genito-urinary (GU) toxicity was evaluated in all patients and graded according to the Common Toxicity Criteria for Adverse Events version 3.0 (CTCAE v. 3.0). A relationship between dose volume and clinical toxicity was evaluated. RESULTS - Ninety-five percent of the PTV2 received more than 76 Gy using IMRT or 3D-CRT with no difference between both methods. The dose-volume histogram mean obtained for the PTV2 was not different between IMRT and 3D-CRT. IMRT improved homogeneity of the delivered dose to the PTV2 as compared with 3D-CRT (7.5 vs 9%, respectively). Ninety-five percent of the PTV1 received 5 Gy more using IMRT with protection of the bladder and the rectum walls. The benefit was considered below 75 and 70 Gy for the wall of the bladder and the rectum, respectively. Grade 2 GI and GU toxicity was observed in four (25%) and five (31%) patients, respectively. No grade 3 toxicity was observed. There was a trend towards a relationship between the mean rectal dose and acute rectal toxicity but without statistical significant difference (P =0.09). CONCLUSION - Dose escalation with IMRT is feasible with no grade 3 or higher acute GI or GU toxicity. Examination of a larger cohort and longer-term follow-up are warranted in the future.
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Affiliation(s)
- N Aillères
- Département de radiophysique, CRLC Val-d'Aurelle-Paul-Lamarque, rue de la Croix-Verte, 34298 Montpellier cedex 5, France
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Barbier N, Paul C, Luger T, Allen R, De Prost Y, Papp K, Eichenfield LF, Cherill R, Hanifin J. Validation of the Eczema Area and Severity Index for atopic dermatitis in a cohort of 1550 patients from the pimecrolimus cream 1% randomized controlled clinical trials programme. Br J Dermatol 2004; 150:96-102. [PMID: 14746622 DOI: 10.1111/j.1365-2133.2004.05696.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To validate the Eczema Area and Severity Index (EASI) by assessing its internal consistency, reliability and sensitivity to change and by correlating it to other efficacy parameters. DESIGN Three short-term and two long-term double-blind, randomized, controlled trials, performed in 138 study centres in Europe, South Africa, Australia, New Zealand, and North and South America. PATIENTS AND METHODS In total, 1550 paediatric patients with atopic dermatitis were studied. Pimecrolimus cream 1% was used twice daily to treat atopic dermatitis. The three short-term studies were placebo controlled. The two long-term studies evaluated the efficacy and safety of early intervention with pimecrolimus to prevent progression to disease flare requiring topical corticosteroid treatment, compared with reactive treatment with topical corticosteroids to treat flares of atopic dermatitis. MAIN OUTCOME MEASURES Five parameters were measured: (i) the EASI (range of score 0-72); (ii) Investigators' Global Assessment (IGA), using a six-point (0-5) scale; (iii) patients' assessment, using a four-point (0-3) scale; (iv) severity of pruritus assessment, using a four-point (0-3) scale; and (v) a quality-of-life evaluation. RESULTS The EASI score varied in parallel and in correlation with the IGA, pruritus and patients' assessment. All correlation coefficients were statistically different from 0 (P < 0.05). The EASI correlated well with each of its components, and all paired comparisons were within agreed limits. The EASI showed good sensitivity to changes in severity. CONCLUSION In a large, multinational patient population with atopic dermatitis, the EASI showed good validity, reliability and sensitivity to change and correlated well with other measures of severity. It therefore qualifies as a valid method of assessment in clinical studies of atopic dermatitis.
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Affiliation(s)
- N Barbier
- Novartis Pharma AG Basel, Switzerland, Novartis Pharma AG Basel, Switzerland
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Kirova Y, Stoppa-Lyonnet D, Savignoni A, Sigal-Zafrani B, Clough K, Barbier N, Fourquet A. Risk of breast recurrence in relation to BRCA1/2 mutation status following breast-conserving surgery and radiotherapy. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)90932-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Forcioli P, Barbier N. [The accreditation visit in practice]. Soins 2001:49-53. [PMID: 12008333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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